A249999 - cp's OEIS frontend

A249999 Expansion of 1/((1-x)^2(1-2x)(1-3x)).

n	a(n)
0	1
1	7
2	32
3	122
4	423
5	1389
6	4414
7	13744
8	42245
9	128771
10	390396
11	1179366
12	3554467
13	10696153
14	32153978
15	96592988
16	290041089
17	870647535
18	2612991160
19	7841070610
20	23527406111
21	70590606917
22	211788597942
23	635399348232
24	1906265153533
25	5718929678299
26	17157057470324
27	51471709281854

[1, 7, 32, 122, 423, 1389, 4414, 13744, 42245, 128771, 390396, 1179366, 3554467, 10696153, 32153978, 96592988, 290041089, 870647535, 2612991160, 7841070610, 23527406111, 70590606917, 211788597942, 635399348232, 1906265153533, 5718929678299, 17157057470324, 51471709281854]

cp's OEIS Frontend

A249999 Expansion of 1/((1-x)^2(1-2x)(1-3x)).

Table of values

List of values

cp's OEIS Frontend

A249999 Expansion of 1/((1-x)^2*(1-2*x)*(1-3*x)).

Table of values

List of values

A249999 Expansion of 1/((1-x)^2(1-2x)(1-3x)).