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A107990 Prime area faces of cubes if the integer part of cube's volume is prime. +0
1
2, 3, 5, 43, 89, 113, 131, 163, 457, 467, 509, 541, 587, 739, 773, 887, 1109, 1123, 1201, 1307, 1319, 1409, 1613, 1741, 1747, 1787, 1979, 2063, 2069, 2459, 2467, 2671, 2689, 2741, 2789, 3187, 3203, 3539, 3547, 3557, 3643, 3823, 3917, 3989, 4021, 4441, 4447 (list; graph; listen)
OFFSET

2,1

FORMULA

V = floor(sqrt(p)^3), p is prime and the area of the face of a cube.

EXAMPLE

p = 5, volume = floor(sqrt(5)^3) = 11 a prime.

PROGRAM

(PARI) g(n) = forprime(x=2, n, y=floor(sqrt(x)^3); if(isprime(y), print1(x, ", ")))

CROSSREFS

Adjacent sequences: A107987 A107988 A107989 this_sequence A107991 A107992 A107993

Sequence in context: A106713 A106820 A042469 this_sequence A117460 A136371 A060380

KEYWORD

easy,nonn,uned

AUTHOR

Cino Hilliard (hillcino368(AT)gmail.com), Jun 13 2005

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.


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