A302995 - cp's OEIS frontend

A302995 a(n) = [x^(n^2)] (theta_3(x) - 1)^n/(2^n*(1 - x)), where theta_3() is the Jacobi theta function.

n	a(n)
0	1
1	1
2	1
3	7
4	32
5	177
6	1269
7	9263
8	74452
9	652710
10	6078048
11	60447082
12	631870024
13	6915613084
14	79113376037
15	941759419159
16	11630647314564
17	148799595377384
18	1966441829785081
19	26793749867965515
20	375812005722920406
21	5416574818546042067
22	80123280319100908258
23	1214860029446181979357

[1, 1, 1, 7, 32, 177, 1269, 9263, 74452, 652710, 6078048, 60447082, 631870024, 6915613084, 79113376037, 941759419159, 11630647314564, 148799595377384, 1966441829785081, 26793749867965515, 375812005722920406, 5416574818546042067, 80123280319100908258, 1214860029446181979357]

cp's OEIS Frontend

A302995 a(n) = [x^(n^2)] (theta_3(x) - 1)^n/(2^n*(1 - x)), where theta_3() is the Jacobi theta function.

Table of values

List of values