A291227 - cp's OEIS frontend

A291227 p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - S - 2*S^2.

n	a(n)
0	1
1	3
2	6
3	17
4	37
5	96
6	221
7	551
8	1302
9	3189
10	7625
11	18528
12	44537
13	107835
14	259830
15	628105
16	1515053
17	3659808
18	8832085
19	21328159
20	51481638
21	124302381
22	300068689
23	724468416
24	1748959153
25	4222461747
26	10193761254
27	24610180673
28	59413804789
29	143438304480
30	346289581709

[1, 3, 6, 17, 37, 96, 221, 551, 1302, 3189, 7625, 18528, 44537, 107835, 259830, 628105, 1515053, 3659808, 8832085, 21328159, 51481638, 124302381, 300068689, 724468416, 1748959153, 4222461747, 10193761254, 24610180673, 59413804789, 143438304480, 346289581709]

cp's OEIS Frontend

A291227 p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - S - 2*S^2.

Table of values

List of values