A209261 a(n) = n^13 + 13*n + 13^n.

1, 27, 8387, 1596559, 67137477, 1221074483, 13065520903, 96951759015, 550571544713, 2552470327819, 10137858491979, 36314872538111, 130291290501709, 605750213184675, 4731091158953615, 53132088082450327, 669920208810550545

Offset

0,2

Comments

This is to A220425 as 13 is to 2, to A220509 as 13 is to 3, to A220511 as 13 is to 5, to A220528 as 13 is to 7, and to A220653 as 13 is to 11. The subsequence of primes begins: 8387, 13065520903.

Links

G. C. Greubel, Table of n, a(n) for n = 0..895

Example

a(2) = 2^13 + 13*2 + 13^2 = 8387.

Mathematica

Table[n^13 + 13*n + 13^n, {n, 0, 30}] (* G. C. Greubel, Jan 05 2018 *)

Prog

(Maxima) makelist(n^13 + 13*n + 13^n, n, 0, 20); /* Martin Ettl, Jan 15 2013 */
(PARI) for(n=0, 30, print1(n^13 + 13*n + 13^n, ", ")) \\ G. C. Greubel, Jan 05 2018
(Magma) [n^13 + 13*n + 13^n: n in [0..30]]; // G. C. Greubel, Jan 05 2018

Crossrefs

Cf. A008455, A008593, A001020, A220425, A220509, A220511, A220528, A220653, A220787.

Sequence in context: A051680 A013828 A343922 * A001321 A263601 A111415

Adjacent sequences: A209258 A209259 A209260 * A209262 A209263 A209264

Keyword

nonn,easy

Author

Jonathan Vos Post, Jan 14 2013

Status

approved