A210252 - cp's OEIS frontend

A210252 Triangle read by rows: T(n,k) is the number of c-nets with n+1 faces and k+1 vertices, 1 <= k <= n. But see A290326 for a better version.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	0
9	0
10	4
11	0
12	0
13	0
14	3
15	24
16	0
17	0
18	0
19	0
20	33
21	188
22	0
23	0
24	0
25	0
26	13
27	338
28	1705
29	0
30	0
31	0
32	0
33	0
34	252
35	3580
36	16980
37	0
38	0
39	0
40	0
41	0
42	68
43	3740
44	39525
45	180670
46	0
47	0
48	0
49	0
50	0
51	0
52	1938
53	51300
54	452865
55	2020120
56	0
57	0
58	0
59	0
60	0
61	0
62	399
63	38076
64	685419
65	5354832
66	23478426
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	15180
75	646415
76	9095856
77	65022840
78	281481880
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	2530
87	373175
88	10215450
89	120872850
90	807560625
91	3461873536
92	0
93	0
94	0
95	0
96	0
97	0
98	0
99	0
100	121095
101	7580040
102	155282400
103	1614234960
104	10224817515
105	43494961404

[0, 0, 0, 0, 0, 1, 0, 0, 0, 4, 0, 0, 0, 3, 24, 0, 0, 0, 0, 33, 188, 0, 0, 0, 0, 13, 338, 1705, 0, 0, 0, 0, 0, 252, 3580, 16980, 0, 0, 0, 0, 0, 68, 3740, 39525, 180670, 0, 0, 0, 0, 0, 0, 1938, 51300, 452865, 2020120, 0, 0, 0, 0, 0, 0, 399, 38076, 685419, 5354832, 23478426, 0, 0, 0, 0, 0, 0, 0, 15180, 646415, 9095856, 65022840, 281481880, 0, 0, 0, 0, 0, 0, 0, 2530, 373175, 10215450, 120872850, 807560625, 3461873536, 0, 0, 0, 0, 0, 0, 0, 0, 121095, 7580040, 155282400, 1614234960, 10224817515, 43494961404]

cp's OEIS Frontend

A210252 Triangle read by rows: T(n,k) is the number of c-nets with n+1 faces and k+1 vertices, 1 <= k <= n. But see A290326 for a better version.

Table of values

List of values