A259669 - cp's OEIS frontend

A259669 a(0)=0, a(1)=1, a(n) = min{5 a(k) + (5^(n-k)-1)/4, k=0..(n-1)} for n>=2.

n	a(n)
0	0
1	1
2	6
3	11
4	36
5	61
6	86
7	211
8	336
9	461
10	586
11	1211
12	1836
13	2461
14	3086
15	3711
16	6836
17	9961
18	13086
19	16211
20	19336
21	22461
22	38086
23	53711
24	69336
25	84961
26	100586
27	116211
28	131836
29	209961
30	288086
31	366211
32	444336
33	522461
34	600586
35	678711
36	756836
37	1147461
38	1538086
39	1928711

[0, 1, 6, 11, 36, 61, 86, 211, 336, 461, 586, 1211, 1836, 2461, 3086, 3711, 6836, 9961, 13086, 16211, 19336, 22461, 38086, 53711, 69336, 84961, 100586, 116211, 131836, 209961, 288086, 366211, 444336, 522461, 600586, 678711, 756836, 1147461, 1538086, 1928711]

cp's OEIS Frontend

A259669 a(0)=0, a(1)=1, a(n) = min{5 a(k) + (5^(n-k)-1)/4, k=0..(n-1)} for n>=2.

Table of values

List of values