A037280 - cp's OEIS frontend

A037280 If n is composite replace n with the concatenation of its nontrivial divisors [ A037279 ] then divide out any factors of 2.

n	a(n)
1	1
2	1
3	3
4	1
5	5
6	23
7	7
8	3
9	3
10	25
11	11
12	1173
13	13
14	27
15	35
16	31
17	17
18	2369
19	19
20	12255
21	37
22	211
23	23
24	586703
25	5
26	213
27	39
28	12357
29	29
30	23561015
31	31
32	1551
33	311
34	217
35	57
36	117345609
37	37
38	219
39	313
40	6145255
41	41
42	23671421
43	43
44	120561
45	35915
46	223
47	47
48	2933515203
49	7
50	251025
51	317

[1, 1, 3, 1, 5, 23, 7, 3, 3, 25, 11, 1173, 13, 27, 35, 31, 17, 2369, 19, 12255, 37, 211, 23, 586703, 5, 213, 39, 12357, 29, 23561015, 31, 1551, 311, 217, 57, 117345609, 37, 219, 313, 6145255, 41, 23671421, 43, 120561, 35915, 223, 47, 2933515203, 7, 251025, 317]

cp's OEIS Frontend

A037280 If n is composite replace n with the concatenation of its nontrivial divisors [ A037279 ] then divide out any factors of 2.

Table of values

List of values