A127063 Primes p such that denominator of Sum_{k=1..p-1} 1/k^2 is a square and denominator Sum_{k=1..p-1} 1/k^3 is a cube and denominator Sum_{k=1..p-1} 1/k^4 is a fourth power and denominator Sum_{k=1..p-1} 1/k^5 is a fifth power.

2, 3, 5, 17, 439, 443, 16400183, 16400191, 16400201, 16400203, 16400221, 16400231, 16400233, 16400269, 16400273, 16400299, 16400309, 16400317, 16400347, 16400383, 16400387, 16400389, 16400411, 16400413, 16400429, 16400431

Offset

1,1

Comments

Subsequence of A127062 and of A127061. - Max Alekseyev, Feb 08 2007

Links

Table of n, a(n) for n=1..26.

Crossrefs

Cf. A061002, A034602, A127029, A127042, A127043, A127044, A127046, A127047, A127048, A127049, A127051, A127061, A127062.

Sequence in context: A275584 A092506 A275159 * A127837 A253646 A004249

Adjacent sequences: A127060 A127061 A127062 * A127064 A127065 A127066

Keyword

nonn

Author

Artur Jasinski, Jan 04 2007

Extensions

More terms from Max Alekseyev, Feb 08 2007

Status

approved