A364781 - cp's OEIS frontend

A364781 Triangular array read by rows: T(n, k) is the number of zero-energy states from the partition function in the Ising model for a finite n*k square lattice with periodic boundary conditions.

n	a(n)
1	0
2	2
3	12
4	0
5	26
6	0
7	2
8	100
9	1346
10	20524
11	0
12	322
13	0
14	272682
15	0
16	2
17	1188
18	72824
19	3961300
20	226137622
21	13172279424
22	0
23	4258
24	0
25	58674450
26	0
27	777714553240
28	0
29	2
30	15876
31	3968690
32	876428620
33	199376325322
34	46463664513012
35	10990445640557042
36	2627978003957146636
37	0
38	59138
39	0
40	13184352554
41	0
42	2799323243348702
43	0
44	633566123999182005386
45	0

[0, 2, 12, 0, 26, 0, 2, 100, 1346, 20524, 0, 322, 0, 272682, 0, 2, 1188, 72824, 3961300, 226137622, 13172279424, 0, 4258, 0, 58674450, 0, 777714553240, 0, 2, 15876, 3968690, 876428620, 199376325322, 46463664513012, 10990445640557042, 2627978003957146636, 0, 59138, 0, 13184352554, 0, 2799323243348702, 0, 633566123999182005386, 0]

cp's OEIS Frontend

A364781 Triangular array read by rows: T(n, k) is the number of zero-energy states from the partition function in the Ising model for a finite n*k square lattice with periodic boundary conditions.

Table of values

List of values