A126950 - cp's OEIS frontend

A126950 a(1) = 1; for n>1, a(n) = the smallest number p > a(n-1) such that (a(n-1)+p)/2 is a cube.

n	a(n)
1	1
2	15
3	39
4	89
5	161
6	271
7	415
8	609
9	849
10	1151
11	1511
12	1945
13	2449
14	3039
15	3711
16	4481
17	5345
18	6319
19	7399
20	8601
21	9921
22	11375
23	12959
24	14689
25	16561
26	18591
27	20775
28	23129
29	25649
30	28351
31	31231
32	34305
33	37569
34	41039
35	44711
36	48601
37	52705
38	57039
39	61599
40	66401

[1, 15, 39, 89, 161, 271, 415, 609, 849, 1151, 1511, 1945, 2449, 3039, 3711, 4481, 5345, 6319, 7399, 8601, 9921, 11375, 12959, 14689, 16561, 18591, 20775, 23129, 25649, 28351, 31231, 34305, 37569, 41039, 44711, 48601, 52705, 57039, 61599, 66401]

cp's OEIS Frontend

A126950 a(1) = 1; for n>1, a(n) = the smallest number p > a(n-1) such that (a(n-1)+p)/2 is a cube.

Table of values

List of values