A283958 - cp's OEIS frontend

A283958 a(n) = (Sum_{j=1..h-1} a(n-j) + a(n-1)*a(n-h+1))/a(n-h) with a(1), ..., a(h)=1, where h = 4.

n	a(n)
1	1
2	1
3	1
4	1
5	4
6	10
7	25
8	139
9	391
10	1033
11	5806
12	16384
13	43345
14	243685
15	687709
16	1819441
17	10228936
18	28867366
19	76373161
20	429371599
21	1211741635
22	3205853305
23	18023378194
24	50864281276
25	134569465633
26	756552512521
27	2135088071929
28	5648711703265
29	31757182147660

[1, 1, 1, 1, 4, 10, 25, 139, 391, 1033, 5806, 16384, 43345, 243685, 687709, 1819441, 10228936, 28867366, 76373161, 429371599, 1211741635, 3205853305, 18023378194, 50864281276, 134569465633, 756552512521, 2135088071929, 5648711703265, 31757182147660]

cp's OEIS Frontend

A283958 a(n) = (Sum_{j=1..h-1} a(n-j) + a(n-1)*a(n-h+1))/a(n-h) with a(1), ..., a(h)=1, where h = 4.

Table of values

List of values