A354127 - cp's OEIS frontend

A354127 Triangle read by rows: T(n, k) is the number of graphs obtained by adding k pierced circles to a path graph P_n.

n	a(n)
0	1
1	1
2	0
3	2
4	2
5	0
6	12
7	10
8	3
9	0
10	82
11	82
12	28
13	4
14	0
15	646
16	738
17	315
18	60
19	5
20	0
21	5574
22	7198
23	3636
24	900
25	110
26	6
27	0
28	51386
29	74086
30	43225
31	13020
32	2135
33	182
34	7
35	0
36	498026
37	793490
38	524784
39	185920
40	37940
41	4452
42	280
43	8
44	0
45	5019720
46	8761906
47	6475959
48	2634912
49	642180
50	95508
51	8442
52	408
53	9
54	0

[1, 1, 0, 2, 2, 0, 12, 10, 3, 0, 82, 82, 28, 4, 0, 646, 738, 315, 60, 5, 0, 5574, 7198, 3636, 900, 110, 6, 0, 51386, 74086, 43225, 13020, 2135, 182, 7, 0, 498026, 793490, 524784, 185920, 37940, 4452, 280, 8, 0, 5019720, 8761906, 6475959, 2634912, 642180, 95508, 8442, 408, 9, 0]

cp's OEIS Frontend

A354127 Triangle read by rows: T(n, k) is the number of graphs obtained by adding k pierced circles to a path graph P_n.

Table of values

List of values