A027014 a(n) = T(2*n, n+3), T given by A027011.

1, 10, 203, 1719, 9484, 40615, 147760, 481849, 1458335, 4194686, 11658332, 31674918, 84807212, 224985864, 593525255, 1560542957, 4095205128, 10735046293, 28123686540, 73654666767, 192865240859, 504973920796, 1322099323816, 3461379173004, 9062108456296

Offset: 3

Author

Clark Kimberling

Keywords

• nonn
• easy

Links

• Colin Barker, Table of n, a(n) for n = 3..1000
• Index entries for linear recurrences with constant coefficients, signature (10,-43,105,-161,161,-105,43,-10,1).

Programs

PARI

Vec(x^3*(1+146*x^2+14*x^3+134*x^4-174*x^5+105*x^6-43*x^7+10*x^8-x^9)/((1-x)^7*(1-3*x+x^2)) + O(x^40)) \\ Colin Barker, Feb 19 2016

Formula

G.f.: x^3*(1+146*x^2+14*x^3+134*x^4-174*x^5+105*x^6-43*x^7+10*x^8-x^9) / ((1-x)^7*(1-3*x+x^2)). - Colin Barker, Feb 19 2016