A376388 - cp's OEIS frontend

A376388 a(n) = P(n+1, n+1) where P(n, m) = P(n, m-1) + P(n-1, m + f(m-n)) for n < m with P(n, m) = P(n-1, m) for 0 <= m <= n and P(0, m) = 1 for m >= 0 where f(n) = [(n mod 5) > 0].

n	a(n)
0	1
1	2
2	6
3	23
4	101
5	478
6	2367
7	12088
8	63166
9	336098
10	1814847
11	9920360
12	54789989
13	305289034
14	1714103538
15	9688492693
16	55083466105
17	314806198628
18	1807505286027
19	10421360638793
20	60311752073306
21	350235881381542
22	2040182863190499
23	11918253416566762
24	69805636091312473

[1, 2, 6, 23, 101, 478, 2367, 12088, 63166, 336098, 1814847, 9920360, 54789989, 305289034, 1714103538, 9688492693, 55083466105, 314806198628, 1807505286027, 10421360638793, 60311752073306, 350235881381542, 2040182863190499, 11918253416566762, 69805636091312473]

cp's OEIS Frontend

A376388 a(n) = P(n+1, n+1) where P(n, m) = P(n, m-1) + P(n-1, m + f(m-n)) for n < m with P(n, m) = P(n-1, m) for 0 <= m <= n and P(0, m) = 1 for m >= 0 where f(n) = [(n mod 5) > 0].

Table of values

List of values