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A090796
Denominator(Bernoulli(n-1) + 1/n)=30, where n runs through the primes.
0
17, 29, 53, 137, 149, 173, 269, 293, 317, 389, 509, 557, 569, 653, 773, 797, 809, 857, 1097, 1109, 1193, 1229, 1493, 1637, 1733, 1949, 1997, 2153, 2309, 2357, 2477, 2693, 2777, 2837, 2909, 2957, 3209, 3413, 3533, 3593, 3677, 3833, 3989, 4013, 4133, 4157
OFFSET
0,1
PROG
(PARI) bouay2(n) = bernfrac(n-1)+1/n for (i=1, 500, if(denominator(bouay2(prime(i)))==30, print(i)))
CROSSREFS
Sequence in context: A190497 A259614 A139840 * A342820 A190556 A241485
KEYWORD
nonn
AUTHOR
mohammed bouayoun (bouyao(AT)wanadoo.fr), Feb 10 2004
STATUS
approved