A291250 - cp's OEIS frontend

A291250 p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - S - 2 S^2 + 2 S^3.

n	a(n)
0	1
1	3
2	4
3	13
4	17
5	52
6	69
7	203
8	272
9	781
10	1053
11	2976
12	4029
13	11267
14	15296
15	42469
16	57765
17	159596
18	217361
19	598499
20	815860
21	2241165
22	3057025
23	8383872
24	11440897
25	31340691
26	42781588
27	117100285
28	159881873
29	437378260
30	597260133
31	1633244795
32	2230504928
33	6097779229

[1, 3, 4, 13, 17, 52, 69, 203, 272, 781, 1053, 2976, 4029, 11267, 15296, 42469, 57765, 159596, 217361, 598499, 815860, 2241165, 3057025, 8383872, 11440897, 31340691, 42781588, 117100285, 159881873, 437378260, 597260133, 1633244795, 2230504928, 6097779229]

cp's OEIS Frontend

A291250 p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - S - 2 S^2 + 2 S^3.

Table of values

List of values