A275330 - cp's OEIS frontend

A275330 Triangle read by rows, T(n,k) = t(n-k+1)Sum_{d|k} dt(d) with t = A000081, for n>=1 and 1<=k<=n.

n	a(n)
1	1
2	1
3	3
4	2
5	3
6	7
7	4
8	6
9	7
10	19
11	9
12	12
13	14
14	19
15	46
16	20
17	27
18	28
19	38
20	46
21	129
22	48
23	60
24	63
25	76
26	92
27	129
28	337
29	115
30	144
31	140
32	171
33	184
34	258
35	337
36	939
37	286
38	345
39	336
40	380
41	414
42	516
43	674
44	939
45	2581
46	719
47	858
48	805
49	912
50	920
51	1161
52	1348
53	1878
54	2581
55	7238

[1, 1, 3, 2, 3, 7, 4, 6, 7, 19, 9, 12, 14, 19, 46, 20, 27, 28, 38, 46, 129, 48, 60, 63, 76, 92, 129, 337, 115, 144, 140, 171, 184, 258, 337, 939, 286, 345, 336, 380, 414, 516, 674, 939, 2581, 719, 858, 805, 912, 920, 1161, 1348, 1878, 2581, 7238]

cp's OEIS Frontend

A275330 Triangle read by rows, T(n,k) = t(n-k+1)Sum_{d|k} dt(d) with t = A000081, for n>=1 and 1<=k<=n.

Table of values

List of values

cp's OEIS Frontend

A275330 Triangle read by rows, T(n,k) = t(n-k+1)*Sum_{d|k} d*t(d) with t = A000081, for n>=1 and 1<=k<=n.

Table of values

List of values

A275330 Triangle read by rows, T(n,k) = t(n-k+1)Sum_{d|k} dt(d) with t = A000081, for n>=1 and 1<=k<=n.