A241094 - cp's OEIS frontend

A241094 Triangle read by rows: T(n,i) = number of gracefully labeled graphs with n edges that do not use the label i, 1 <= i <= n-1, n > 1.

n	a(n)
2	0
3	1
4	1
5	4
6	4
7	4
8	18
9	24
10	24
11	18
12	96
13	144
14	144
15	96
16	600
17	960
18	1080
19	1080
20	960
21	600
22	4320
23	7200
24	8460
25	8460
26	8460
27	7200
28	4320
29	35280
30	60840
31	75600
32	80640
33	80640
34	75600
35	60480
36	35280
37	322560
38	564480
39	725760
40	806400
41	806400
42	806400
43	725760
44	564480
45	322560

[0, 1, 1, 4, 4, 4, 18, 24, 24, 18, 96, 144, 144, 96, 600, 960, 1080, 1080, 960, 600, 4320, 7200, 8460, 8460, 8460, 7200, 4320, 35280, 60840, 75600, 80640, 80640, 75600, 60480, 35280, 322560, 564480, 725760, 806400, 806400, 806400, 725760, 564480, 322560]

cp's OEIS Frontend

A241094 Triangle read by rows: T(n,i) = number of gracefully labeled graphs with n edges that do not use the label i, 1 <= i <= n-1, n > 1.

Table of values

List of values