A231686 - cp's OEIS frontend

A231686 a(n) = Sum_{i=0..n} digsum_9(i)^3, where digsum_9(i) = A053830(i).

n	a(n)
0	0
1	1
2	9
3	36
4	100
5	225
6	441
7	784
8	1296
9	1297
10	1305
11	1332
12	1396
13	1521
14	1737
15	2080
16	2592
17	3321
18	3329
19	3356
20	3420
21	3545
22	3761
23	4104
24	4616
25	5345
26	6345
27	6372
28	6436
29	6561
30	6777
31	7120
32	7632
33	8361
34	9361
35	10692
36	10756
37	10881
38	11097
39	11440
40	11952
41	12681
42	13681
43	15012
44	16740
45	16865
46	17081
47	17424
48	17936
49	18665
50	19665
51	20996
52	22724
53	24921
54	25137
55	25480
56	25992
57	26721
58	27721
59	29052

[0, 1, 9, 36, 100, 225, 441, 784, 1296, 1297, 1305, 1332, 1396, 1521, 1737, 2080, 2592, 3321, 3329, 3356, 3420, 3545, 3761, 4104, 4616, 5345, 6345, 6372, 6436, 6561, 6777, 7120, 7632, 8361, 9361, 10692, 10756, 10881, 11097, 11440, 11952, 12681, 13681, 15012, 16740, 16865, 17081, 17424, 17936, 18665, 19665, 20996, 22724, 24921, 25137, 25480, 25992, 26721, 27721, 29052]

cp's OEIS Frontend

A231686 a(n) = Sum_{i=0..n} digsum_9(i)^3, where digsum_9(i) = A053830(i).

Table of values

List of values