A358415 - cp's OEIS frontend

A358415 a(n) is the prime or perfect or amicable or sociable number encountered in the aliquot sequence for 2^n.

n	a(n)
1	2
2	3
3	7
4	3
5	31
6	41
7	127
8	41
9	43
10	7
11	113
12	7
13	8191
14	6
15	6
16	313
17	131071
18	211457
19	524287
20	53
21	4217
22	433
23	41
24	547
25	2243
26	691921
27	21275809
28	673
29	76831
30	467
31	2147483647
32	89
33	112337
34	401
35	17681
36	9342799
37	12011
38	9511
39	19
40	1061129
41	164524721
42	5460123943
43	71
44	106661
45	33188053169
46	211
47	41

[2, 3, 7, 3, 31, 41, 127, 41, 43, 7, 113, 7, 8191, 6, 6, 313, 131071, 211457, 524287, 53, 4217, 433, 41, 547, 2243, 691921, 21275809, 673, 76831, 467, 2147483647, 89, 112337, 401, 17681, 9342799, 12011, 9511, 19, 1061129, 164524721, 5460123943, 71, 106661, 33188053169, 211, 41]

cp's OEIS Frontend

A358415 a(n) is the prime or perfect or amicable or sociable number encountered in the aliquot sequence for 2^n.

Table of values

List of values