A242106 - cp's OEIS frontend

A242106 Number T(n,k) of inequivalent n X n matrices using exactly k different symbols, where equivalence means permutations of rows or columns or the symbol set; triangle T(n,k), n>=0, 0<=k<=n^2, read by rows.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	4
6	3
7	1
8	0
9	1
10	17
11	121
12	269
13	241
14	100
15	24
16	3
17	1
18	0
19	1
20	172
21	15239
22	316622
23	1951089
24	4820228
25	5769214
26	3768929
27	1451594
28	347251
29	53628
30	5645
31	451
32	37
33	3
34	1
35	0
36	1
37	2811
38	10802952
39	3316523460
40	170309112972
41	2577666563670
42	15839885888526

[1, 0, 1, 0, 1, 4, 3, 1, 0, 1, 17, 121, 269, 241, 100, 24, 3, 1, 0, 1, 172, 15239, 316622, 1951089, 4820228, 5769214, 3768929, 1451594, 347251, 53628, 5645, 451, 37, 3, 1, 0, 1, 2811, 10802952, 3316523460, 170309112972, 2577666563670, 15839885888526]

cp's OEIS Frontend

A242106 Number T(n,k) of inequivalent n X n matrices using exactly k different symbols, where equivalence means permutations of rows or columns or the symbol set; triangle T(n,k), n>=0, 0<=k<=n^2, read by rows.

Table of values

List of values