A279394 - cp's OEIS frontend

A279394 Triangle read by rows, T(n,m) = sigma_{n-m}(m) for n >= 1, m = 1,2, ..., n.

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	2
7	1
8	5
9	4
10	3
11	1
12	9
13	10
14	7
15	2
16	1
17	17
18	28
19	21
20	6
21	4
22	1
23	33
24	82
25	73
26	26
27	12
28	2
29	1
30	65
31	244
32	273
33	126
34	50
35	8
36	4
37	1
38	129
39	730
40	1057
41	626
42	252
43	50
44	15
45	3
46	1
47	257
48	2188
49	4161
50	3126
51	1394
52	344
53	85
54	13
55	4
56	1
57	513
58	6562
59	16513
60	15626
61	8052
62	2402
63	585
64	91
65	18
66	2
67	1
68	1025
69	19684
70	65793
71	78126
72	47450
73	16808
74	4369
75	757
76	130
77	12
78	6

[1, 1, 2, 1, 3, 2, 1, 5, 4, 3, 1, 9, 10, 7, 2, 1, 17, 28, 21, 6, 4, 1, 33, 82, 73, 26, 12, 2, 1, 65, 244, 273, 126, 50, 8, 4, 1, 129, 730, 1057, 626, 252, 50, 15, 3, 1, 257, 2188, 4161, 3126, 1394, 344, 85, 13, 4, 1, 513, 6562, 16513, 15626, 8052, 2402, 585, 91, 18, 2, 1, 1025, 19684, 65793, 78126, 47450, 16808, 4369, 757, 130, 12, 6]

cp's OEIS Frontend

A279394 Triangle read by rows, T(n,m) = sigma_{n-m}(m) for n >= 1, m = 1,2, ..., n.

Table of values

List of values