A001523 - cp's OEIS frontend

A001523 Number of stacks, or planar partitions of n; also weakly unimodal compositions of n.

n	a(n)
0	1
1	1
2	2
3	4
4	8
5	15
6	27
7	47
8	79
9	130
10	209
11	330
12	512
13	784
14	1183
15	1765
16	2604
17	3804
18	5504
19	7898
20	11240
21	15880
22	22277
23	31048
24	43003
25	59220
26	81098
27	110484
28	149769
29	202070
30	271404
31	362974
32	483439
33	641368
34	847681
35	1116325
36	1464999
37	1916184
38	2498258
39	3247088
40	4207764

[1, 1, 2, 4, 8, 15, 27, 47, 79, 130, 209, 330, 512, 784, 1183, 1765, 2604, 3804, 5504, 7898, 11240, 15880, 22277, 31048, 43003, 59220, 81098, 110484, 149769, 202070, 271404, 362974, 483439, 641368, 847681, 1116325, 1464999, 1916184, 2498258, 3247088, 4207764]

cp's OEIS Frontend

A001523 Number of stacks, or planar partitions of n; also weakly unimodal compositions of n.

Table of values

List of values