A036684 T(n+5,5) with T as in A036355.

8, 38, 149, 478, 1390, 3736, 9496, 23080, 54127, 123230, 273653, 594878, 1269532, 2665912, 5518900, 11280856, 22797331, 45599656, 90362560, 177550600, 346157050, 670060100, 1288497590, 2462607020, 4679908400, 8846662634

Offset: 0

Author

Floor van Lamoen

Keywords

• nonn
• easy

Links

• Index entries for linear recurrences with constant coefficients, signature (6,-9,-10,30,6,-41,-6,30,10,-9,-6,-1).

Formula

G.f.: (3x^4+6x^3-7x^2-10x+8)/(1-x-x^2)^6.

a(n)=3*A001872(n)+4*A001873(n)+A001874(n). - R. J. Mathar, Jul 03 2022