A171843 - cp's OEIS frontend

A171843 Triangle read by rows = truncated columns of an array formed by variants of the natural number decrescendo triangle, A004736.

n	a(n)
1	1
2	1
3	3
4	1
5	3
6	8
7	1
8	3
9	6
10	21
11	1
12	3
13	6
14	12
15	55
16	1
17	3
18	6
19	10
20	24
21	144
22	1
23	3
24	6
25	10
26	17
27	48
28	377
29	1
30	3
31	6
32	10
33	15
34	30
35	96
36	987
37	1
38	3
39	6
40	10
41	15
42	23
43	53
44	192
45	2584
46	1
47	3
48	6
49	10
50	15
51	21
52	37
53	93
54	384
55	6765
56	1
57	3
58	6
59	10
60	15
61	21
62	30
63	61
64	163
65	768
66	17711
67	1
68	3
69	6
70	10
71	15
72	21
73	28
74	45
75	100
76	286
77	1536
78	46368

[1, 1, 3, 1, 3, 8, 1, 3, 6, 21, 1, 3, 6, 12, 55, 1, 3, 6, 10, 24, 144, 1, 3, 6, 10, 17, 48, 377, 1, 3, 6, 10, 15, 30, 96, 987, 1, 3, 6, 10, 15, 23, 53, 192, 2584, 1, 3, 6, 10, 15, 21, 37, 93, 384, 6765, 1, 3, 6, 10, 15, 21, 30, 61, 163, 768, 17711, 1, 3, 6, 10, 15, 21, 28, 45, 100, 286, 1536, 46368]

cp's OEIS Frontend

A171843 Triangle read by rows = truncated columns of an array formed by variants of the natural number decrescendo triangle, A004736.

Table of values

List of values