A324647 - cp's OEIS frontend

A324647 Odd numbers k such that 2k is equal to bitwise-AND of 2k and sigma(k).

n	a(n)
1	1116225
2	1245825
3	1380825
4	2127825
5	10046025
6	16813125
7	203753025
8	252880425
9	408553425
10	415433025
11	740361825
12	969523425
13	1369580625
14	1612924425
15	1763305425
16	2018027025
17	2048985225
18	2286684225
19	3341556225
20	3915517725
21	3985769025
22	4051698525
23	7085469825
24	7520472225

[1116225, 1245825, 1380825, 2127825, 10046025, 16813125, 203753025, 252880425, 408553425, 415433025, 740361825, 969523425, 1369580625, 1612924425, 1763305425, 2018027025, 2048985225, 2286684225, 3341556225, 3915517725, 3985769025, 4051698525, 7085469825, 7520472225]

cp's OEIS Frontend

A324647 Odd numbers k such that 2k is equal to bitwise-AND of 2k and sigma(k).

Table of values

List of values

cp's OEIS Frontend

A324647 Odd numbers k such that 2*k is equal to bitwise-AND of 2*k and sigma(k).

Table of values

List of values

A324647 Odd numbers k such that 2k is equal to bitwise-AND of 2k and sigma(k).