1,3

Exponent 4 analogue of A046029 Numbers n such that (n!)^2+1 is prime. Numbers k such that k! is an element of A000068 Numbers n such that n^4 + 1 is prime.

Cf. A000068, A037896, A046029.

Sequence in context: A053350 A165302 A117342 this_sequence A126129 A102947 A162222

Adjacent sequences: A123212 A123213 A123214 this_sequence A123216 A123217 A123218

easy,nonn

Jonathan Vos Post (jvospost3(AT)gmail.com), Oct 05 2006