A293312 - cp's OEIS frontend

A293312 Rectangular array read by antidiagonals: A(n,k) = tr((M_n)^k), k >= 0, where M_n is the n X n matrix M_1 = {{1}}, M_n = {{0,...,0,1},{0,...,0,1,1},...,{0,1,...,1},{1,...,1}}, n > 1, and tr(.) is the trace.

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	3
7	1
8	3
9	2
10	4
11	1
12	4
13	6
14	2
15	5
16	1
17	7
18	11
19	10
20	3
21	6
22	1
23	11
24	26
25	23
26	15
27	3
28	7
29	1
30	18
31	57
32	70
33	42
34	21
35	4
36	8
37	1
38	29
39	129
40	197
41	155
42	69
43	28
44	4
45	9
46	1
47	47
48	289
49	571
50	533
51	301
52	106
53	36
54	5
55	10
56	1
57	76
58	650
59	1640
60	1884
61	1223
62	532
63	154
64	45
65	5
66	11

[1, 1, 2, 1, 1, 3, 1, 3, 2, 4, 1, 4, 6, 2, 5, 1, 7, 11, 10, 3, 6, 1, 11, 26, 23, 15, 3, 7, 1, 18, 57, 70, 42, 21, 4, 8, 1, 29, 129, 197, 155, 69, 28, 4, 9, 1, 47, 289, 571, 533, 301, 106, 36, 5, 10, 1, 76, 650, 1640, 1884, 1223, 532, 154, 45, 5, 11]

cp's OEIS Frontend

A293312 Rectangular array read by antidiagonals: A(n,k) = tr((M_n)^k), k >= 0, where M_n is the n X n matrix M_1 = {{1}}, M_n = {{0,...,0,1},{0,...,0,1,1},...,{0,1,...,1},{1,...,1}}, n > 1, and tr(.) is the trace.

Table of values

List of values