A069476 First differences of A069475, successive differences of (n+1)^6-n^6.

1800, 2520, 3240, 3960, 4680, 5400, 6120, 6840, 7560, 8280, 9000, 9720, 10440, 11160, 11880, 12600, 13320, 14040, 14760, 15480, 16200, 16920, 17640, 18360, 19080, 19800, 20520, 21240, 21960, 22680, 23400, 24120, 24840, 25560, 26280, 27000

Offset: 0

Author

Eli McGowan (ejmcgowa(AT)mail.lakeheadu.ca), Mar 26 2002

Keywords

• nonn
• easy

Links

• Tanya Khovanova, Recursive Sequences
• Index entries for linear recurrences with constant coefficients, signature (2,-1).

Crossrefs

Cf. A001014, A020735, A022522, A069473, A069474, A069475.

Programs

Mathematica

Table[720 n + 1800, {n, 0, 40}] (* Bruno Berselli, Feb 25 2015 *)

Formula

a(n) = 720*n + 1800 = 360*A020735(n+1).

G.f.: 360*(5 - 3*x)/(1 - x)^2. [Bruno Berselli, Feb 25 2015]

Extensions

Offset changed from 1 to 0 and added a(0)=1800 by Bruno Berselli, Feb 25 2015