A378377 - cp's OEIS frontend

A378377 Triangle read by rows: T(n,k) is the number of non-descending sequences with length k such that the maximum of the length and the last number is n.

n	a(n)
1	1
2	1
3	3
4	1
5	3
6	10
7	1
8	4
9	10
10	35
11	1
12	5
13	15
14	35
15	126
16	1
17	6
18	21
19	56
20	126
21	462
22	1
23	7
24	28
25	84
26	210
27	462
28	1716
29	1
30	8
31	36
32	120
33	330
34	792
35	1716
36	6435
37	1
38	9
39	45
40	165
41	495
42	1287
43	3003
44	6435
45	24310
46	1
47	10
48	55
49	220
50	715
51	2002
52	5005
53	11440
54	24310
55	92378

[1, 1, 3, 1, 3, 10, 1, 4, 10, 35, 1, 5, 15, 35, 126, 1, 6, 21, 56, 126, 462, 1, 7, 28, 84, 210, 462, 1716, 1, 8, 36, 120, 330, 792, 1716, 6435, 1, 9, 45, 165, 495, 1287, 3003, 6435, 24310, 1, 10, 55, 220, 715, 2002, 5005, 11440, 24310, 92378]

cp's OEIS Frontend

A378377 Triangle read by rows: T(n,k) is the number of non-descending sequences with length k such that the maximum of the length and the last number is n.

Table of values

List of values