A344116 - cp's OEIS frontend

A344116 Triangle read by rows: T(n,k) is the number of relations from an n-element set to a k-element set that are not onto functions.

n	a(n)
1	1
2	3
3	14
4	7
5	58
6	506
7	15
8	242
9	4060
10	65512
11	31
12	994
13	32618
14	1048336
15	33554312
16	63
17	4034
18	261604
19	16775656
20	1073740024
21	68719476016
22	127
23	16258
24	2095346
25	268427056
26	34359721568
27	4398046495984
28	562949953416272
29	255
30	65282
31	16771420
32	4294926472
33	1099511501776
34	281474976519136
35	72057594037786816
36	18446744073709511296

[1, 3, 14, 7, 58, 506, 15, 242, 4060, 65512, 31, 994, 32618, 1048336, 33554312, 63, 4034, 261604, 16775656, 1073740024, 68719476016, 127, 16258, 2095346, 268427056, 34359721568, 4398046495984, 562949953416272, 255, 65282, 16771420, 4294926472, 1099511501776, 281474976519136, 72057594037786816, 18446744073709511296]

cp's OEIS Frontend

A344116 Triangle read by rows: T(n,k) is the number of relations from an n-element set to a k-element set that are not onto functions.

Table of values

List of values