A256380 Primes of the form p^4+q^4+r^4-4 with p<=q<=r all prime.

109, 239, 653, 1327, 1871, 14669, 15887, 31039, 31583, 33359, 45599, 57839, 84223, 85999, 100559, 112799, 114479, 126719, 130349, 131023, 135119, 140639, 158959, 159503, 167119, 167663, 195599, 213919, 214463, 228479, 242399, 297359, 363439, 365759, 377999

Offset

1,1

Comments

Corresponding triples {p, q, r}: {2,2,3}, {3,3,3}, {2,2,5}, {3,5,5} ,{5,5,5},{2,2,11},...

Links

Table of n, a(n) for n=1..35.

Crossrefs

A256377 is a subsequence (case p=q=r).

Sequence in context: A142797 A140622 A278784 * A063342 A260010 A142144

Adjacent sequences: A256377 A256378 A256379 * A256381 A256382 A256383

Keyword

nonn,easy

Author

Zak Seidov, Mar 27 2015

Status

approved