A016807 a(n) = (4*n)^7.

0, 16384, 2097152, 35831808, 268435456, 1280000000, 4586471424, 13492928512, 34359738368, 78364164096, 163840000000, 319277809664, 587068342272, 1028071702528, 1727094849536, 2799360000000

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• easy

Comments

Generating function is 128 times the g.f. of A016747. - R. J. Mathar, May 07 2008

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..10000
• Index entries for linear recurrences with constant coefficients, signature (8, -28, 56, -70, 56, -28, 8, -1).

Crossrefs

Cf. A016747.

Programs

Magma

[(4*n)^7: n in [0..30]]; // Vincenzo Librandi, Sep 05 2011

Mathematica

Table[(4 n)^7, {n, 0, 15}] (* Michael De Vlieger, Oct 15 2017 *)

Formula

a(n) = 128*A016747(n). - R. J. Mathar, May 07 2008

a(n) = 8*a(n-1) - 28*a(n-2) + 56*a(n-3) - 70*a(n-4) + 56*a(n-5) - 28*a(n-6) + 8*a(n-7) - a(n-8) for n > 7. - Wesley Ivan Hurt, Oct 15 2017