A016200 - cp's OEIS frontend

A016200 Expansion of g.f. 1/((1-x)(1-2x)(1-6x)).

n	a(n)
0	1
1	9
2	61
3	381
4	2317
5	13965
6	83917
7	503757
8	3023053
9	18139341
10	108838093
11	653032653
12	3918204109
13	23509241037
14	141055478989
15	846332939469
16	5077997767885
17	30467986869453
18	182807921741005
19	1096847531494605
20	6581085191064781
21	39486511150582989
22	236919066911886541
23	1421514401488096461

[1, 9, 61, 381, 2317, 13965, 83917, 503757, 3023053, 18139341, 108838093, 653032653, 3918204109, 23509241037, 141055478989, 846332939469, 5077997767885, 30467986869453, 182807921741005, 1096847531494605, 6581085191064781, 39486511150582989, 236919066911886541, 1421514401488096461]

cp's OEIS Frontend

A016200 Expansion of g.f. 1/((1-x)(1-2x)(1-6x)).

Table of values

List of values

cp's OEIS Frontend

A016200 Expansion of g.f. 1/((1-x)*(1-2*x)*(1-6*x)).

Table of values

List of values

A016200 Expansion of g.f. 1/((1-x)(1-2x)(1-6x)).