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A050811 Partition numbers rounded to nearest integer given by the Hardy-Ramanujan approximate formula. +0
1
1, 2, 4, 6, 9, 13, 18, 26, 35, 48, 65, 87, 115, 152, 199, 258, 333, 427, 545, 692, 875, 1102, 1381, 1725, 2145, 2659, 3285, 4046, 4967, 6080, 7423, 9037, 10974, 13293, 16065, 19370, 23304, 27977, 33519, 40080, 47833, 56981, 67757, 80431, 95316 (list; graph; listen)
OFFSET

1,2

LINKS

Dr. Math, Partitioning the Integers

Dr. Math, Partitioning an Integer

D. Rusin, Additive Partitions of Number

F. Ruskey, Generate Numerical Partitions

Eric Weisstein's World of Mathematics, Partition Function P

PROGRAM

(Ubasic) input N:print round(#e^(pi(1)*sqrt(2*N/3))/(4*N*sqrt(3)))

CROSSREFS

Cf. A000041, A049575, A051143.

Sequence in context: A001305 A088575 A026906 this_sequence A039900 A039902 A081659

Adjacent sequences: A050808 A050809 A050810 this_sequence A050812 A050813 A050814

KEYWORD

nonn,easy

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Oct 15 1999.

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.


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