A045973 - cp's OEIS frontend

A045973 a(1)=10; if n = Product p_i^e_i, n > 1, then a(n) = Product p_{i+1}^e_i * Product p_{i+3}^e_i.

n	a(n)
1	10
2	21
3	55
4	441
5	91
6	1155
7	187
8	9261
9	3025
10	1911
11	247
12	24255
13	391
14	3927
15	5005
16	194481
17	551
18	63525
19	713
20	40131
21	10285
22	5187
23	1073
24	509355
25	8281
26	8211
27	166375
28	82467
29	1271
30	105105
31	1591
32	4084101
33	13585
34	11571
35	17017
36	1334025
37	1927
38	14973
39	21505
40	842751

[10, 21, 55, 441, 91, 1155, 187, 9261, 3025, 1911, 247, 24255, 391, 3927, 5005, 194481, 551, 63525, 713, 40131, 10285, 5187, 1073, 509355, 8281, 8211, 166375, 82467, 1271, 105105, 1591, 4084101, 13585, 11571, 17017, 1334025, 1927, 14973, 21505, 842751]

cp's OEIS Frontend

A045973 a(1)=10; if n = Product p_i^e_i, n > 1, then a(n) = Product p_{i+1}^e_i * Product p_{i+3}^e_i.

Table of values

List of values