A123887 - cp's OEIS frontend

A123887 Expansion of g.f.: (1+x+x^2)/(1-5x-5x^2).

n	a(n)
0	1
1	6
2	36
3	210
4	1230
5	7200
6	42150
7	246750
8	1444500
9	8456250
10	49503750
11	289800000
12	1696518750
13	9931593750
14	58140562500
15	340360781250
16	1992506718750
17	11664337500000
18	68284221093750
19	399742792968750
20	2340135070312500
21	13699389316406250
22	80197621933593750
23	469485056250000000

[1, 6, 36, 210, 1230, 7200, 42150, 246750, 1444500, 8456250, 49503750, 289800000, 1696518750, 9931593750, 58140562500, 340360781250, 1992506718750, 11664337500000, 68284221093750, 399742792968750, 2340135070312500, 13699389316406250, 80197621933593750, 469485056250000000]

cp's OEIS Frontend

A123887 Expansion of g.f.: (1+x+x^2)/(1-5x-5x^2).

Table of values

List of values

cp's OEIS Frontend

A123887 Expansion of g.f.: (1+x+x^2)/(1-5*x-5*x^2).

Table of values

List of values

A123887 Expansion of g.f.: (1+x+x^2)/(1-5x-5x^2).