A328780 - cp's OEIS frontend

A328780 Nonnegative integers k such that k and k^2 have the same number of nonzero digits.

n	a(n)
1	0
2	1
3	2
4	3
5	10
6	20
7	30
8	100
9	200
10	245
11	247
12	249
13	251
14	253
15	283
16	300
17	448
18	548
19	949
20	1000
21	1249
22	1253
23	1416
24	1747
25	1749
26	1751
27	1753
28	1755
29	2000
30	2245
31	2247
32	2249
33	2251
34	2253
35	2429
36	2450
37	2451
38	2470
39	2490
40	2498
41	2510
42	2530
43	2647
44	2830
45	3000
46	3747
47	3751
48	4480
49	4899

[0, 1, 2, 3, 10, 20, 30, 100, 200, 245, 247, 249, 251, 253, 283, 300, 448, 548, 949, 1000, 1249, 1253, 1416, 1747, 1749, 1751, 1753, 1755, 2000, 2245, 2247, 2249, 2251, 2253, 2429, 2450, 2451, 2470, 2490, 2498, 2510, 2530, 2647, 2830, 3000, 3747, 3751, 4480, 4899]

cp's OEIS Frontend

A328780 Nonnegative integers k such that k and k^2 have the same number of nonzero digits.

Table of values

List of values