A156043 - cp's OEIS frontend

A156043 A(n,n), where A(n,k) is the number of compositions (ordered partitions) of n into k parts (parts of size 0 being allowed), with the first part being greater than or equal to all the rest.

n	a(n)
1	1
2	2
3	4
4	11
5	32
6	102
7	331
8	1101
9	3724
10	12782
11	44444
12	156334
13	555531
14	1991784
15	7197369
16	26186491
17	95847772
18	352670170
19	1303661995
20	4838822931
21	18025920971
22	67371021603
23	252538273442
24	949164364575
25	3576145084531
26	13503991775252

[1, 2, 4, 11, 32, 102, 331, 1101, 3724, 12782, 44444, 156334, 555531, 1991784, 7197369, 26186491, 95847772, 352670170, 1303661995, 4838822931, 18025920971, 67371021603, 252538273442, 949164364575, 3576145084531, 13503991775252]

cp's OEIS Frontend

A156043 A(n,n), where A(n,k) is the number of compositions (ordered partitions) of n into k parts (parts of size 0 being allowed), with the first part being greater than or equal to all the rest.

Table of values

List of values