A135765 - cp's OEIS frontend

A135765 Distribute the odd numbers in columns based on the occurrence of "3" in each prime factorization; square array A(row, col) = 3^(row-1) * A007310(col), read by antidiagonals A(1,1), A(1,2), A(2,1), A(1,3), A(2,2), A(3,1), ...

n	a(n)
1	1
2	5
3	3
4	7
5	15
6	9
7	11
8	21
9	45
10	27
11	13
12	33
13	63
14	135
15	81
16	17
17	39
18	99
19	189
20	405
21	243
22	19
23	51
24	117
25	297
26	567
27	1215
28	729
29	23
30	57
31	153
32	351
33	891
34	1701
35	3645
36	2187
37	25
38	69
39	171
40	459
41	1053
42	2673
43	5103
44	10935
45	6561
46	29
47	75
48	207
49	513
50	1377
51	3159
52	8019
53	15309
54	32805

[1, 5, 3, 7, 15, 9, 11, 21, 45, 27, 13, 33, 63, 135, 81, 17, 39, 99, 189, 405, 243, 19, 51, 117, 297, 567, 1215, 729, 23, 57, 153, 351, 891, 1701, 3645, 2187, 25, 69, 171, 459, 1053, 2673, 5103, 10935, 6561, 29, 75, 207, 513, 1377, 3159, 8019, 15309, 32805]

cp's OEIS Frontend

A135765 Distribute the odd numbers in columns based on the occurrence of "3" in each prime factorization; square array A(row, col) = 3^(row-1) * A007310(col), read by antidiagonals A(1,1), A(1,2), A(2,1), A(1,3), A(2,2), A(3,1), ...

Table of values

List of values