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

Author

Jonathan Vos Post, Jan 14 2013

Keywords

• nonn
• easy

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.

Examples

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

Links

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

Crossrefs

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

Programs

Magma

[n^13 + 13*n + 13^n: n in [0..30]]; // G. C. Greubel, Jan 05 2018

Mathematica

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

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