A335956 - cp's OEIS frontend

A335956 a(n) = (2^n - 1)*2^valuation(n, 2) for n > 0 and a(0) = 0.

n	a(n)
0	0
1	1
2	6
3	7
4	60
5	31
6	126
7	127
8	2040
9	511
10	2046
11	2047
12	16380
13	8191
14	32766
15	32767
16	1048560
17	131071
18	524286
19	524287
20	4194300
21	2097151
22	8388606
23	8388607
24	134217720
25	33554431
26	134217726
27	134217727
28	1073741820
29	536870911
30	2147483646
31	2147483647
32	137438953440
33	8589934591

[0, 1, 6, 7, 60, 31, 126, 127, 2040, 511, 2046, 2047, 16380, 8191, 32766, 32767, 1048560, 131071, 524286, 524287, 4194300, 2097151, 8388606, 8388607, 134217720, 33554431, 134217726, 134217727, 1073741820, 536870911, 2147483646, 2147483647, 137438953440, 8589934591]

cp's OEIS Frontend

A335956 a(n) = (2^n - 1)*2^valuation(n, 2) for n > 0 and a(0) = 0.

Table of values

List of values