A291012 - cp's OEIS frontend

A291012 p-INVERT of (1,1,1,1,1,...), where p(S) = (1 - S^2)(1 - 2S).

n	a(n)
0	2
1	7
2	22
3	68
4	208
5	632
6	1912
7	5768
8	17368
9	52232
10	156952
11	471368
12	1415128
13	4247432
14	12746392
15	38247368
16	114758488
17	344308232
18	1032990232
19	3099101768
20	9297567448
21	27893226632
22	83680728472
23	251044282568
24	753137042008
25	2259419514632
26	6778275321112

[2, 7, 22, 68, 208, 632, 1912, 5768, 17368, 52232, 156952, 471368, 1415128, 4247432, 12746392, 38247368, 114758488, 344308232, 1032990232, 3099101768, 9297567448, 27893226632, 83680728472, 251044282568, 753137042008, 2259419514632, 6778275321112]

cp's OEIS Frontend

A291012 p-INVERT of (1,1,1,1,1,...), where p(S) = (1 - S^2)(1 - 2S).

Table of values

List of values

cp's OEIS Frontend

A291012 p-INVERT of (1,1,1,1,1,...), where p(S) = (1 - S^2)*(1 - 2*S).

Table of values

List of values

A291012 p-INVERT of (1,1,1,1,1,...), where p(S) = (1 - S^2)(1 - 2S).