A348566 - cp's OEIS frontend

A348566 Triangle read by rows: T(m, n) is the number of symmetric recurrent sandpiles on an m X n grid (m >= 0, 0 <= n <= m).

n	a(n)
0	1
1	1
2	4
3	1
4	3
5	2
6	1
7	14
8	7
9	128
10	1
11	11
12	5
13	71
14	36
15	1
16	52
17	18
18	1358
19	539
20	43264
21	1
22	41
23	13
24	769
25	281
26	17753
27	6728
28	1
29	194
30	47
31	14852
32	4271
33	1452866
34	434657
35	151519232
36	1
37	153
38	34
39	8449
40	2245
41	603126
42	167089
43	46069729
44	12988816
45	1
46	724
47	123
48	163534
49	34276
50	49704772
51	10894561
52	16236962114
53	3625549353
54	5475450241024

[1, 1, 4, 1, 3, 2, 1, 14, 7, 128, 1, 11, 5, 71, 36, 1, 52, 18, 1358, 539, 43264, 1, 41, 13, 769, 281, 17753, 6728, 1, 194, 47, 14852, 4271, 1452866, 434657, 151519232, 1, 153, 34, 8449, 2245, 603126, 167089, 46069729, 12988816, 1, 724, 123, 163534, 34276, 49704772, 10894561, 16236962114, 3625549353, 5475450241024]

cp's OEIS Frontend

A348566 Triangle read by rows: T(m, n) is the number of symmetric recurrent sandpiles on an m X n grid (m >= 0, 0 <= n <= m).

Table of values

List of values