spaces, linear: see linear spaces
spaces: (1) A001199 A001439 A001548 A001776 A002876 A002877 A014595 A018924 A018925 A031436 A031437 A031438
spaces: (2) A056642 A001776 A007182 A007293 A007473
special numbers: A002116
specific heat, sequences related to (start):
specific heat: (1) A001393 A001408 A002165 A002167 A002169 A002916 A002917 A002918 A002922 A005392 A005400 A005402
specific heat: (2) A010111 A010112 A010113 A010114 A029872 A029873 A029874 A030122 A057376 A057380 A057384 A057388
specific heat: (3) A057392 A057396 A057400 A057404
spectral arrays: A007068 A007069 A007071 A022158 A022159 A022160 A022161 A022162 A022163 A022164 A022165
spectrum of a number: Graham, Knuth and Patashnik in "Concrete Mathematics" define the spectrum of x to be the sequence [floor(x), floor(2x), floor(3x),...]. In this database that is called the Beatty sequence (q.v.) defined by x.
speed of light: A003678 *
spelling and notation , guide to (start):
spelling and notation: the following are the correct spellings for some words and symbols that are commonly mistyped in the OEIS:
spelling: > (not grth)
spelling: >= (not \ge)
spelling: a(n) for n-th term in sequence (not a[n])
spelling: color (not colour - the OEIS uses U.S. spelling)
spelling: dependent (not dependant)
spelling: dissectable (not dissectible)
spelling: e for 2.718281828... (not E)
spelling: Fibonacci (not fibonacci)
spelling: generalize (not generalise)
spelling: J. S. Bach (not J.S. Bach - a period should be followed by a space, except in hyphenated names like J.-P. Serre)
spelling: log(n) (not ln(x) or Log[x])
spelling: log_10(x) for logs to base 10
spelling: n X n (not n x n, not n by n)
spelling: n-th, m-th, i-th, j-th, etc. (not nth, mth, ith, jth)
spelling: neighbor (not neighbour)
spelling: nilpotent (not "nil-potent")
spelling: nonnegative (not non-negative)
spelling: nonprime (not non-prime)
spelling: nonzero (not non-zero)
spelling: occurring (not occuring)
spelling: Pi for 3.141592654... (not pi)
spelling: prime(n) (not p(n) or Prime(n), etc.)
spelling: recurrence (not recurence)
spelling: semiprime (not semi-prime)
spelling: sin(x) (not Sin[x])
spelling: square-free (not squarefree)
spelling: submatrix (not sub-matrix)
spelling: tetranacci (not Tetranacci)
spelling: tribonacci (not Tribonacci)
spelling: zeros (not zeroes)
Sperner families: A007695 *
Sperner's theorem: A001405 *
sphere, surface area of n-dimensional: A072478 /A072479
sphere, vector fields on: A053381
sphere, volume of n-dimensional: A072345 /A072346
spherical designs: A007828 , A076868 , A076869 , A076870
Spheroidal harmonics:: A002692 , A002693 , A002695
spirals, enumeration of: A006775 , A006776 , A006777 , A006778 , A006779 , A006780
spirals, sequences from: A001107 , A002939 , A007742 , A033951 , A033952 , A033953 , A033954 , A033989 , A033990 , A033991 , A002943 , A033996 , A033988 .
split numbers: A036382