A116520 - cp's OEIS frontend

A116520 a(0) = 0, a(1) = 1; a(n) = max { 4*a(k) + a(n-k) | 1 <= k <= n/2 }, for n > 1.

n	a(n)
0	0
1	1
2	5
3	9
4	25
5	29
6	45
7	61
8	125
9	129
10	145
11	161
12	225
13	241
14	305
15	369
16	625
17	629
18	645
19	661
20	725
21	741
22	805
23	869
24	1125
25	1141
26	1205
27	1269
28	1525
29	1589
30	1845
31	2101
32	3125
33	3129
34	3145
35	3161
36	3225
37	3241
38	3305
39	3369
40	3625
41	3641
42	3705
43	3769
44	4025
45	4089
46	4345
47	4601
48	5625

[0, 1, 5, 9, 25, 29, 45, 61, 125, 129, 145, 161, 225, 241, 305, 369, 625, 629, 645, 661, 725, 741, 805, 869, 1125, 1141, 1205, 1269, 1525, 1589, 1845, 2101, 3125, 3129, 3145, 3161, 3225, 3241, 3305, 3369, 3625, 3641, 3705, 3769, 4025, 4089, 4345, 4601, 5625]

cp's OEIS Frontend

A116520 a(0) = 0, a(1) = 1; a(n) = max { 4*a(k) + a(n-k) | 1 <= k <= n/2 }, for n > 1.

Table of values

List of values