A323943 - cp's OEIS frontend

A323943 Trapezoidal matrix T(n,k) (n>=1, 1<=k<=n+2) read by rows, arising in enumeration of unbranched k-4-catafusenes.

n	a(n)
1	1
2	2
3	1
4	3
5	7
6	5
7	1
8	9
9	24
10	22
11	8
12	1
13	27
14	81
15	90
16	46
17	11
18	1
19	81
20	270
21	351
22	228
23	79
24	14
25	1
26	243
27	891
28	1323
29	1035
30	465
31	121
32	17
33	1
34	729
35	2916
36	4860
37	4428
38	2430
39	828
40	172
41	20
42	1
43	2187
44	9477
45	17496
46	18144
47	11718
48	4914
49	1344
50	232
51	23
52	1
53	6561
54	30618
55	61965
56	71928
57	53298
58	26460
59	8946
60	2040
61	301
62	26
63	1
64	19683

[1, 2, 1, 3, 7, 5, 1, 9, 24, 22, 8, 1, 27, 81, 90, 46, 11, 1, 81, 270, 351, 228, 79, 14, 1, 243, 891, 1323, 1035, 465, 121, 17, 1, 729, 2916, 4860, 4428, 2430, 828, 172, 20, 1, 2187, 9477, 17496, 18144, 11718, 4914, 1344, 232, 23, 1, 6561, 30618, 61965, 71928, 53298, 26460, 8946, 2040, 301, 26, 1, 19683]

cp's OEIS Frontend

A323943 Trapezoidal matrix T(n,k) (n>=1, 1<=k<=n+2) read by rows, arising in enumeration of unbranched k-4-catafusenes.

Table of values

List of values