A292493 - cp's OEIS frontend

A292493 p-INVERT of the odd positive integers, where p(S) = 1 + S - 3 S^2.

n	a(n)
0	-1
1	1
2	12
3	25
4	61
5	266
6	963
7	3053
8	10220
9	35413
10	120345
11	405682
12	1376119
13	4676201
14	15859212
15	53768225
16	182400581
17	618792826
18	2098887003
19	7119249973
20	24149097580
21	81915342653
22	277858469505
23	942504046562
24	3197013067439
25	10844389616401
26	36784545696012

[-1, 1, 12, 25, 61, 266, 963, 3053, 10220, 35413, 120345, 405682, 1376119, 4676201, 15859212, 53768225, 182400581, 618792826, 2098887003, 7119249973, 24149097580, 81915342653, 277858469505, 942504046562, 3197013067439, 10844389616401, 36784545696012]

cp's OEIS Frontend

A292493 p-INVERT of the odd positive integers, where p(S) = 1 + S - 3 S^2.

Table of values

List of values