A051489 a(n) = n^(n+2) + (n+2)^n.

1, 4, 32, 368, 5392, 94932, 1941760, 45136576, 1173741824, 33739007300, 1061917364224, 36314872537968, 1340612376924160, 53132088082450132, 2250010931847299072, 101388548387203175168, 4843806013966239465472, 244552822542936127033092, 13010380216396078174437376

Offset

0,2

Links

G. C. Greubel, Table of n, a(n) for n = 0..350

Mathematica

Table[n^(n+2)+(n+2)^n, {n, 0, 20}] (* Harvey P. Dale, Jul 28 2025 *)

Prog

(Magma) [n^(n+2) + (n+2)^n: n in [0..30]]; // G. C. Greubel, Jul 14 2021
(SageMath) [n^(n+2) + (n+2)^n for n in (0..30)] # G. C. Greubel, Jul 14 2021

Crossrefs

Cf. A007925, A046065, A051442, A391414.

Sequence in context: A357407 A319220 A347021 * A375949 A295257 A341502

Adjacent sequences: A051486 A051487 A051488 * A051490 A051491 A051492

Keyword

nonn

Author

N. J. A. Sloane

Status

approved