A110309 - cp's OEIS frontend

A110309 Expansion of (1+3x+x^2)/((1+x+x^2)(1+5*x+x^2)).

n	a(n)
0	1
1	-3
2	12
3	-57
4	275
5	-1320
6	6325
7	-30303
8	145188
9	-695637
10	3332999
11	-15969360
12	76513801
13	-366599643
14	1756484412
15	-8415822417
16	40322627675
17	-193197315960
18	925663952125
19	-4435122444663
20	21249948271188
21	-101814618911277
22	487823146285199
23	-2337301112514720

[1, -3, 12, -57, 275, -1320, 6325, -30303, 145188, -695637, 3332999, -15969360, 76513801, -366599643, 1756484412, -8415822417, 40322627675, -193197315960, 925663952125, -4435122444663, 21249948271188, -101814618911277, 487823146285199, -2337301112514720]

cp's OEIS Frontend

A110309 Expansion of (1+3x+x^2)/((1+x+x^2)(1+5*x+x^2)).

Table of values

List of values

cp's OEIS Frontend

A110309 Expansion of (1+3*x+x^2)/((1+x+x^2)*(1+5*x+x^2)).

Table of values

List of values

A110309 Expansion of (1+3x+x^2)/((1+x+x^2)(1+5*x+x^2)).