A130665 - cp's OEIS frontend

A130665 a(n) = Sum_{k=0..n} 3^wt(k), where wt() = A000120().

n	a(n)
0	1
1	4
2	7
3	16
4	19
5	28
6	37
7	64
8	67
9	76
10	85
11	112
12	121
13	148
14	175
15	256
16	259
17	268
18	277
19	304
20	313
21	340
22	367
23	448
24	457
25	484
26	511
27	592
28	619
29	700
30	781
31	1024
32	1027
33	1036
34	1045
35	1072
36	1081
37	1108
38	1135
39	1216
40	1225
41	1252
42	1279
43	1360
44	1387
45	1468
46	1549
47	1792
48	1801
49	1828
50	1855

[1, 4, 7, 16, 19, 28, 37, 64, 67, 76, 85, 112, 121, 148, 175, 256, 259, 268, 277, 304, 313, 340, 367, 448, 457, 484, 511, 592, 619, 700, 781, 1024, 1027, 1036, 1045, 1072, 1081, 1108, 1135, 1216, 1225, 1252, 1279, 1360, 1387, 1468, 1549, 1792, 1801, 1828, 1855]

cp's OEIS Frontend

A130665 a(n) = Sum_{k=0..n} 3^wt(k), where wt() = A000120().

Table of values

List of values