A387419 - cp's OEIS frontend

A387419 Numbers k such that the odd part of (1+k) divides (1 + odd part of A003959(k)), where A003959 is multiplicative with a(p^e) = (p+1)^e.

n	a(n)
1	1
2	3
3	4
4	7
5	15
6	31
7	40
8	63
9	127
10	255
11	511
12	639
13	1023
14	2047
15	2175
16	2431
17	4095
18	5247
19	8191
20	14335
21	16383
22	32767
23	40959
24	44031
25	57855
26	65535
27	90111
28	131071
29	204799
30	262143
31	376831
32	524287
33	923647
34	1048575
35	1632255
36	2056191
37	2097151
38	2621439
39	2744319
40	4194303
41	6815743
42	8388607
43	8781823
44	16777215
45	19922943
46	24068095

[1, 3, 4, 7, 15, 31, 40, 63, 127, 255, 511, 639, 1023, 2047, 2175, 2431, 4095, 5247, 8191, 14335, 16383, 32767, 40959, 44031, 57855, 65535, 90111, 131071, 204799, 262143, 376831, 524287, 923647, 1048575, 1632255, 2056191, 2097151, 2621439, 2744319, 4194303, 6815743, 8388607, 8781823, 16777215, 19922943, 24068095]

cp's OEIS Frontend

A387419 Numbers k such that the odd part of (1+k) divides (1 + odd part of A003959(k)), where A003959 is multiplicative with a(p^e) = (p+1)^e.

Table of values

List of values