A057931 - cp's OEIS frontend

A057931 Positions at which powers of 2 occur in A057929. (Or -1 if it does not occur.)

n	a(n)
0	-1
1	0
2	-1
3	2
4	5
5	11
6	23
7	32
8	47
9	83
10	131
11	239
12	311
13	527
14	731
15	965
16	1703
17	2675
18	3827
19	6359
20	9659
21	14555
22	23087
23	33041
24	45995
25	77519
26	120467
27	177635
28	252713
29	405317
30	554033
31	795827
32	1335083
33	1819523
34	2491229
35	4183463
36	5920211
37	8051987
38	12530963
39	20132057

[-1, 0, -1, 2, 5, 11, 23, 32, 47, 83, 131, 239, 311, 527, 731, 965, 1703, 2675, 3827, 6359, 9659, 14555, 23087, 33041, 45995, 77519, 120467, 177635, 252713, 405317, 554033, 795827, 1335083, 1819523, 2491229, 4183463, 5920211, 8051987, 12530963, 20132057]

cp's OEIS Frontend

A057931 Positions at which powers of 2 occur in A057929. (Or -1 if it does not occur.)

Table of values

List of values