A094046 - cp's OEIS frontend

A094046 Triangle read by rows: T(n,k) (n>=2; 0<=k<=floor(n/2)-1) is the number of noncrossing connected graphs on n nodes on a circle, having exactly k four-sided faces.

n	a(n)
2	1
3	4
4	22
5	1
6	141
7	15
8	988
9	171
10	3
11	7337
12	1778
13	77
14	56749
15	17758
16	1300
17	12
18	452332
19	173826
20	18315
21	435
22	3689697
23	1683055
24	233695
25	9680
26	55
27	30652931
28	16195344
29	2804637
30	171226
31	2574
32	258465558
33	155280489
34	32306742
35	2647580
36	70980
37	273

[1, 4, 22, 1, 141, 15, 988, 171, 3, 7337, 1778, 77, 56749, 17758, 1300, 12, 452332, 173826, 18315, 435, 3689697, 1683055, 233695, 9680, 55, 30652931, 16195344, 2804637, 171226, 2574, 258465558, 155280489, 32306742, 2647580, 70980, 273]

cp's OEIS Frontend

A094046 Triangle read by rows: T(n,k) (n>=2; 0<=k<=floor(n/2)-1) is the number of noncrossing connected graphs on n nodes on a circle, having exactly k four-sided faces.

Table of values

List of values