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A156018
Primes of the form k^3 + k^2 + k - 1.
5
2, 13, 83, 257, 1109, 2953, 6173, 8419, 14423, 40493, 99497, 127549, 178807, 198533, 347969, 378503, 480713, 599843, 787243, 1271483, 1417583, 1574467, 2883593, 3133597, 3397649, 4770023, 5118203, 5482927, 5671613, 6469637, 6680203
OFFSET
1,1
LINKS
EXAMPLE
13 is a term since 13 = 2^3 + 2^2 + 2 - 1.
MATHEMATICA
lst={}; Do[p=(n^1+n^2+n^3)-1; If[PrimeQ[p], AppendTo[lst, p]], {n, 7!}]; lst
CROSSREFS
Cf. A125964.
Sequence in context: A162772 A317892 A079752 * A285795 A134148 A164035
KEYWORD
nonn
AUTHOR
STATUS
approved