A331729 - cp's OEIS frontend

A331729 Number of Ulam numbers u (A002858) between powers of 2, 2^n < u <= 2^(n+1).

n	a(n)
0	1
1	2
2	2
3	3
4	3
5	7
6	11
7	20
8	31
9	47
10	92
11	162
12	312
13	632
14	1235
15	2460
16	4844
17	9665
18	19335
19	38727
20	77569
21	155729
22	310405
23	620596
24	1240580
25	2481645
26	4966229
27	9926596
28	19855760
29	39717367
30	79428417

[1, 2, 2, 3, 3, 7, 11, 20, 31, 47, 92, 162, 312, 632, 1235, 2460, 4844, 9665, 19335, 38727, 77569, 155729, 310405, 620596, 1240580, 2481645, 4966229, 9926596, 19855760, 39717367, 79428417]

cp's OEIS Frontend

A331729 Number of Ulam numbers u (A002858) between powers of 2, 2^n < u <= 2^(n+1).

Table of values

List of values