A218577 - cp's OEIS frontend

A218577 Triangle read by rows: T(n,k) is the number of ascent sequences of length n with maximal element k-1.

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	7
9	6
10	1
11	1
12	15
13	25
14	11
15	1
16	1
17	31
18	90
19	74
20	20
21	1
22	1
23	63
24	301
25	402
26	209
27	37
28	1
29	1
30	127
31	966
32	1951
33	1629
34	590
35	70
36	1
37	1
38	255
39	3025
40	8869
41	10839
42	6430
43	1685
44	135
45	1
46	1
47	511
48	9330
49	38720
50	65720
51	56878
52	25313
53	4870
54	264
55	1

[1, 1, 1, 1, 3, 1, 1, 7, 6, 1, 1, 15, 25, 11, 1, 1, 31, 90, 74, 20, 1, 1, 63, 301, 402, 209, 37, 1, 1, 127, 966, 1951, 1629, 590, 70, 1, 1, 255, 3025, 8869, 10839, 6430, 1685, 135, 1, 1, 511, 9330, 38720, 65720, 56878, 25313, 4870, 264, 1]

cp's OEIS Frontend

A218577 Triangle read by rows: T(n,k) is the number of ascent sequences of length n with maximal element k-1.

Table of values

List of values