A291236 - cp's OEIS frontend

A291236 p-INVERT of (0,1,0,1,0,1,...), where p(S) = (1 - S)(1 - 3 S).

n	a(n)
0	4
1	13
2	44
3	147
4	488
5	1616
6	5344
7	17661
8	58348
9	192739
10	636620
11	2102688
12	6944828
13	22937405
14	75757420
15	250210275
16	826389232
17	2729379568
18	9014530520
19	29772975309
20	98333463212
21	324773375891
22	1072653608596
23	3542734230336
24	11700856345972
25	38645303343277

[4, 13, 44, 147, 488, 1616, 5344, 17661, 58348, 192739, 636620, 2102688, 6944828, 22937405, 75757420, 250210275, 826389232, 2729379568, 9014530520, 29772975309, 98333463212, 324773375891, 1072653608596, 3542734230336, 11700856345972, 38645303343277]

cp's OEIS Frontend

A291236 p-INVERT of (0,1,0,1,0,1,...), where p(S) = (1 - S)(1 - 3 S).

Table of values

List of values