A017056 a(n) = (7*n + 6)^4.

1296, 28561, 160000, 531441, 1336336, 2825761, 5308416, 9150625, 14776336, 22667121, 33362176, 47458321, 65610000, 88529281, 116985856, 151807041, 193877776, 244140625, 303595776, 373301041

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• easy

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..10000
• Index entries for linear recurrences with constant coefficients, signature (5,-10,10,-5,1).

Crossrefs

Cf. A017053 (7*n+6).

Programs

Magma

[(7*n+6)^4: n in [0..40]]; // Vincenzo Librandi, Jul 10 2011

Formula

G.f.: -(1296 + 22081*x + 30155*x^2 + 4091*x^3 + x^4)/(x-1)^5. - R. J. Mathar, Jul 14 2016