A130812 - cp's OEIS frontend

A130812 If X_1,...,X_n is a partition of a 2n-set X into 2-blocks then a(n) is equal to the number of 6-subsets of X containing none of X_i, (i=1,...n).

n	a(n)
6	64
7	448
8	1792
9	5376
10	13440
11	29568
12	59136
13	109824
14	192192
15	320320
16	512512
17	792064
18	1188096
19	1736448
20	2480640
21	3472896
22	4775232
23	6460608
24	8614144
25	11334400
26	14734720
27	18944640
28	24111360
29	30401280
30	38001600
31	47121984
32	57996288
33	70884352
34	86073856
35	103882240

[64, 448, 1792, 5376, 13440, 29568, 59136, 109824, 192192, 320320, 512512, 792064, 1188096, 1736448, 2480640, 3472896, 4775232, 6460608, 8614144, 11334400, 14734720, 18944640, 24111360, 30401280, 38001600, 47121984, 57996288, 70884352, 86073856, 103882240]

cp's OEIS Frontend

A130812 If X_1,...,X_n is a partition of a 2n-set X into 2-blocks then a(n) is equal to the number of 6-subsets of X containing none of X_i, (i=1,...n).

Table of values

List of values