A291243 - cp's OEIS frontend

A291243 p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - 3 S + S^2.

n	a(n)
0	3
1	8
2	24
3	71
4	210
5	621
6	1836
7	5428
8	16047
9	47440
10	140247
11	414612
12	1225716
13	3623579
14	10712370
15	31668929
16	93622704
17	276776352
18	818232603
19	2418937120
20	7151092203
21	21140739568
22	62498266944
23	184763326671
24	546214936050
25	1614772594421
26	4773744472356
27	14112597876668

[3, 8, 24, 71, 210, 621, 1836, 5428, 16047, 47440, 140247, 414612, 1225716, 3623579, 10712370, 31668929, 93622704, 276776352, 818232603, 2418937120, 7151092203, 21140739568, 62498266944, 184763326671, 546214936050, 1614772594421, 4773744472356, 14112597876668]

cp's OEIS Frontend

A291243 p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - 3 S + S^2.

Table of values

List of values