A224957 - cp's OEIS frontend

A224957 Number of compositions [p(1), p(2), ..., p(k)] of n such that p(j) <= 2p(j-1) and p(j-1) <= 2p(j).

n	a(n)
0	1
1	1
2	2
3	4
4	6
5	11
6	19
7	31
8	54
9	92
10	154
11	266
12	454
13	771
14	1319
15	2249
16	3834
17	6550
18	11176
19	19069
20	32558
21	55567
22	94838
23	161891
24	276325
25	471659
26	805102
27	1374234
28	2345724
29	4004031
30	6834605
31	11666260
32	19913668
33	33991462
34	58021534
35	99039592
36	169055094
37	288567886
38	492569833
39	840790082

[1, 1, 2, 4, 6, 11, 19, 31, 54, 92, 154, 266, 454, 771, 1319, 2249, 3834, 6550, 11176, 19069, 32558, 55567, 94838, 161891, 276325, 471659, 805102, 1374234, 2345724, 4004031, 6834605, 11666260, 19913668, 33991462, 58021534, 99039592, 169055094, 288567886, 492569833, 840790082]

cp's OEIS Frontend

A224957 Number of compositions [p(1), p(2), ..., p(k)] of n such that p(j) <= 2p(j-1) and p(j-1) <= 2p(j).

Table of values

List of values

cp's OEIS Frontend

A224957 Number of compositions [p(1), p(2), ..., p(k)] of n such that p(j) <= 2*p(j-1) and p(j-1) <= 2*p(j).

Table of values

List of values

A224957 Number of compositions [p(1), p(2), ..., p(k)] of n such that p(j) <= 2p(j-1) and p(j-1) <= 2p(j).