A261640 - cp's OEIS frontend

A261640 Numbers n such that the digital sum of n is the same as the digital sum of n^2 in both base 2 and base 10.

n	a(n)
1	0
2	1
3	351
4	379
5	496
6	558
7	639
8	1495
9	1792
10	3259
11	4600
12	5950
13	6399
14	6588
15	8568
16	10494
17	10495
18	12799
19	17380
20	17919
21	26479
22	38872
23	38880
24	44991
25	44992
26	46585
27	48888
28	56952
29	59247
30	60895
31	64639
32	89839
33	89848
34	89856
35	92799
36	105390
37	142848
38	168895
39	174078
40	179596

[0, 1, 351, 379, 496, 558, 639, 1495, 1792, 3259, 4600, 5950, 6399, 6588, 8568, 10494, 10495, 12799, 17380, 17919, 26479, 38872, 38880, 44991, 44992, 46585, 48888, 56952, 59247, 60895, 64639, 89839, 89848, 89856, 92799, 105390, 142848, 168895, 174078, 179596]

cp's OEIS Frontend

A261640 Numbers n such that the digital sum of n is the same as the digital sum of n^2 in both base 2 and base 10.

Table of values

List of values