A016907 (5n+4)^11.

4194304, 31381059609, 4049565169664, 116490258898219, 1521681143169024, 12200509765705829, 70188843638032384, 317475837322472439, 1196683881290399744, 3909821048582988049, 11384956040305711104

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• easy

Comments

If 5n+4 is a perfect square, that is for n=0,1,9,12,28,33,57,64,..., a(n)=A010810(j), where the indices j are listed in A047221. - R. J. Mathar, Apr 22 2008.

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..1000
• Index entries for linear recurrences with constant coefficients, signature (12,-66,220,-495,792,-924,792,-495,220,-66,12,-1).

Programs

Magma

[(5*n+4)^11: n in [0..30]]; // Vincenzo Librandi, May 03 2011

Formula

G.f.: (x^11 [phone]*x^10 [phone]*x^9 [phone]*x^8 [phone]*x^7 [phone]*x^6 [phone]*x^5 [phone]*x^4 [phone]*x^3 [phone]*x^2 [phone]*x +4194304) / (x -1)^12. [Colin Barker, Feb 22 2013]