A175105 - cp's OEIS frontend

A175105 Triangle T(n,k) read by rows. T(n,1)=1; T(n,k) = Sum_{i=1..k-1} ( T(n-i,k-1) + T(n-i,k) ), k>1.

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	3
9	4
10	1
11	1
12	4
13	10
14	6
15	1
16	1
17	5
18	21
19	22
20	8
21	1
22	1
23	6
24	40
25	64
26	38
27	10
28	1
29	1
30	7
31	72
32	163
33	140
34	58
35	12
36	1
37	1
38	8
39	125
40	382
41	442
42	256
43	82
44	14
45	1
46	1
47	9
48	212
49	846
50	1259
51	954
52	420
53	110
54	16
55	1
56	1
57	10
58	354
59	1800
60	3334
61	3166
62	1794
63	640
64	142
65	18
66	1
67	1
68	11
69	585
70	3719
71	8366
72	9657
73	6754
74	3074
75	924
76	178
77	20
78	1

[1, 1, 1, 1, 2, 1, 1, 3, 4, 1, 1, 4, 10, 6, 1, 1, 5, 21, 22, 8, 1, 1, 6, 40, 64, 38, 10, 1, 1, 7, 72, 163, 140, 58, 12, 1, 1, 8, 125, 382, 442, 256, 82, 14, 1, 1, 9, 212, 846, 1259, 954, 420, 110, 16, 1, 1, 10, 354, 1800, 3334, 3166, 1794, 640, 142, 18, 1, 1, 11, 585, 3719, 8366, 9657, 6754, 3074, 924, 178, 20, 1]

cp's OEIS Frontend

A175105 Triangle T(n,k) read by rows. T(n,1)=1; T(n,k) = Sum_{i=1..k-1} ( T(n-i,k-1) + T(n-i,k) ), k>1.

Table of values

List of values