A376395 - cp's OEIS frontend

A376395 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 and where f(n) = [(n mod 6) > 0].

n	a(n)
0	1
1	2
2	6
3	23
4	102
5	492
6	2494
7	13049
8	69804
9	379739
10	2093908
11	11676674
12	65742586
13	373229312
14	2134271056
15	12282634251
16	71086381856
17	413492903669
18	2416072302880
19	14174831386633
20	83468889675398
21	493156776790271
22	2922620673535552
23	17369048521659378
24	103489903578100662

[1, 2, 6, 23, 102, 492, 2494, 13049, 69804, 379739, 2093908, 11676674, 65742586, 373229312, 2134271056, 12282634251, 71086381856, 413492903669, 2416072302880, 14174831386633, 83468889675398, 493156776790271, 2922620673535552, 17369048521659378, 103489903578100662]

cp's OEIS Frontend

A376395 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 and where f(n) = [(n mod 6) > 0].

Table of values

List of values