A383192 - cp's OEIS frontend

A383192 a(n) is the number of possible choices for the first n terms of a "mean-central" sequence, where a monotonically increasing sequence of positive integers {b(n)} is called "mean-central" if for each positive integer k, the arithmetic mean of the first b(k) terms is exactly b(k).

n	a(n)
1	1
2	2
3	2
4	3
5	3
6	4
7	8
8	16
9	20
10	25
11	27
12	48
13	72
14	107
15	149
16	260
17	372
18	511
19	653
20	1032
21	1192
22	1713
23	2218
24	3992
25	5504
26	7729
27	10452
28	16397
29	21700
30	32292
31	43742
32	72859
33	98926
34	143759
35	187703
36	284689
37	368374
38	526256
39	729299
40	1315303

[1, 2, 2, 3, 3, 4, 8, 16, 20, 25, 27, 48, 72, 107, 149, 260, 372, 511, 653, 1032, 1192, 1713, 2218, 3992, 5504, 7729, 10452, 16397, 21700, 32292, 43742, 72859, 98926, 143759, 187703, 284689, 368374, 526256, 729299, 1315303]

cp's OEIS Frontend

A383192 a(n) is the number of possible choices for the first n terms of a "mean-central" sequence, where a monotonically increasing sequence of positive integers {b(n)} is called "mean-central" if for each positive integer k, the arithmetic mean of the first b(k) terms is exactly b(k).

Table of values

List of values