A182348 Primes of the form n^4 - 3.

13, 4093, 1048573, 1336333, 2085133, 4477453, 16777213, 54700813, 92236813, 116985853, 146409997, 236421373, 285609997, 479785213, 959512573, 1003875853, 1097199373, 1303209997, 1871773693, 2097273613, 2342559997

Offset: 1

Author

Patrick Devlin, Apr 25 2012

Keywords

• nonn

Examples

			13 = 2^4 - 3; 4093 = 8^4 - 3.
		

Crossrefs

Cf. A037896.

Programs

Maple

# choose N large, then S is the desired set
f:=n->n^4 - 3:
S:={}:
for n from 0 to N do if(isprime(f(n))) then S:=S union {f(n)}: fi: od: