A124418 - cp's OEIS frontend

A124418 Triangle read by rows: T(n,k) is the number of partitions of the set {1,2,...,n} having exactly k blocks that contain both odd and even entries (0<=k<=floor(n/2)).

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	3
6	4
7	9
8	2
9	10
10	30
11	12
12	25
13	100
14	72
15	6
16	75
17	370
18	372
19	60
20	225
21	1369
22	1922
23	600
24	24
25	780
26	5587
27	9920
28	4500
29	360
30	2704
31	22801
32	51200
33	33750
34	5400
35	120
36	10556
37	101774
38	273920
39	234000
40	55800
41	2520
42	41209
43	454276
44	1465472
45	1622400
46	576600
47	52920
48	720

[1, 1, 1, 1, 2, 3, 4, 9, 2, 10, 30, 12, 25, 100, 72, 6, 75, 370, 372, 60, 225, 1369, 1922, 600, 24, 780, 5587, 9920, 4500, 360, 2704, 22801, 51200, 33750, 5400, 120, 10556, 101774, 273920, 234000, 55800, 2520, 41209, 454276, 1465472, 1622400, 576600, 52920, 720]

cp's OEIS Frontend

A124418 Triangle read by rows: T(n,k) is the number of partitions of the set {1,2,...,n} having exactly k blocks that contain both odd and even entries (0<=k<=floor(n/2)).

Table of values

List of values