A231677 - cp's OEIS frontend

A231677 a(n) = Sum_{i=0..n} digsum_7(i)^2, where digsum_7(i) = A053828(i).

n	a(n)
0	0
1	1
2	5
3	14
4	30
5	55
6	91
7	92
8	96
9	105
10	121
11	146
12	182
13	231
14	235
15	244
16	260
17	285
18	321
19	370
20	434
21	443
22	459
23	484
24	520
25	569
26	633
27	714
28	730
29	755
30	791
31	840
32	904
33	985
34	1085
35	1110
36	1146
37	1195
38	1259
39	1340
40	1440
41	1561
42	1597
43	1646
44	1710
45	1791
46	1891
47	2012
48	2156
49	2157
50	2161
51	2170
52	2186
53	2211
54	2247
55	2296
56	2300
57	2309
58	2325
59	2350
60	2386
61	2435
62	2499
63	2508
64	2524
65	2549
66	2585
67	2634
68	2698
69	2779

[0, 1, 5, 14, 30, 55, 91, 92, 96, 105, 121, 146, 182, 231, 235, 244, 260, 285, 321, 370, 434, 443, 459, 484, 520, 569, 633, 714, 730, 755, 791, 840, 904, 985, 1085, 1110, 1146, 1195, 1259, 1340, 1440, 1561, 1597, 1646, 1710, 1791, 1891, 2012, 2156, 2157, 2161, 2170, 2186, 2211, 2247, 2296, 2300, 2309, 2325, 2350, 2386, 2435, 2499, 2508, 2524, 2549, 2585, 2634, 2698, 2779]

cp's OEIS Frontend

A231677 a(n) = Sum_{i=0..n} digsum_7(i)^2, where digsum_7(i) = A053828(i).

Table of values

List of values