A182346 Primes of the form n^4 + 6.

7, 631, 279847, 4879687, 12117367, 20151127, 28398247, 62742247, 68574967, 81450631, 174900631, 1330863367, 1698181687, 3373402567, 3722098087, 4499860567, 5719140631, 9354951847, 16610312167, 18141126727

Offset

1,1

Links

Table of n, a(n) for n=1..20.

Example

7 = 1^4 + 6; 631 = 5^4 + 6.

Maple

# choose N large, then S is the desired set
f:=n->n^4 + 6:
S:={}:
for n from 0 to N do if(isprime(f(n))) then S:=S union {f(n)}: fi: od:

Mathematica

Select[Range[1, 400, 2]^4+6, PrimeQ] (* Harvey P. Dale, Jan 12 2013 *)

Crossrefs

Cf. A037896.

Sequence in context: A087772 A047942 A319033 * A333741 A175601 A246113

Adjacent sequences: A182343 A182344 A182345 * A182347 A182348 A182349

Keyword

nonn

Author

Patrick Devlin, Apr 25 2012

Status

approved