A257608 - cp's OEIS frontend

A257608 Triangle read by rows: T(n,k) = t(n-k, k); t(n,m) = f(m)t(n-1,m) + f(n)t(n,m-1), where f(x) = 9*x + 1.

n	a(n)
0	1
1	1
2	1
3	1
4	20
5	1
6	1
7	219
8	219
9	1
10	1
11	2218
12	8322
13	2218
14	1
15	1
16	22217
17	220222
18	220222
19	22217
20	1
21	1
22	222216
23	5006247
24	12332432
25	5006247
26	222216
27	1
28	1
29	2222215
30	105340629
31	530539235
32	530539235
33	105340629
34	2222215
35	1
36	1
37	22222214
38	2123693776
39	19700767514
40	39259903390
41	19700767514
42	2123693776
43	22222214
44	1

[1, 1, 1, 1, 20, 1, 1, 219, 219, 1, 1, 2218, 8322, 2218, 1, 1, 22217, 220222, 220222, 22217, 1, 1, 222216, 5006247, 12332432, 5006247, 222216, 1, 1, 2222215, 105340629, 530539235, 530539235, 105340629, 2222215, 1, 1, 22222214, 2123693776, 19700767514, 39259903390, 19700767514, 2123693776, 22222214, 1]

cp's OEIS Frontend

A257608 Triangle read by rows: T(n,k) = t(n-k, k); t(n,m) = f(m)t(n-1,m) + f(n)t(n,m-1), where f(x) = 9*x + 1.

Table of values

List of values

cp's OEIS Frontend

A257608 Triangle read by rows: T(n,k) = t(n-k, k); t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1), where f(x) = 9*x + 1.

Table of values

List of values

A257608 Triangle read by rows: T(n,k) = t(n-k, k); t(n,m) = f(m)t(n-1,m) + f(n)t(n,m-1), where f(x) = 9*x + 1.