A018828 - cp's OEIS frontend

A018828 Numbers n such that n is a substring of its square (both n and n squared in base 4) (written in base 10).

n	a(n)
1	0
2	1
3	4
4	16
5	41
6	54
7	64
8	164
9	165
10	256
11	290
12	487
13	545
14	566
15	1024
16	1160
17	1948
18	2180
19	3546
20	4096
21	4226
22	4261
23	7625
24	8321
25	8720
26	9514
27	13813
28	13867
29	15913
30	16158
31	16384
32	16904
33	33284
34	46126
35	54854
36	55468
37	63652
38	64632
39	65536
40	66050
41	67616
42	113047
43	130591

[0, 1, 4, 16, 41, 54, 64, 164, 165, 256, 290, 487, 545, 566, 1024, 1160, 1948, 2180, 3546, 4096, 4226, 4261, 7625, 8321, 8720, 9514, 13813, 13867, 15913, 16158, 16384, 16904, 33284, 46126, 54854, 55468, 63652, 64632, 65536, 66050, 67616, 113047, 130591]

cp's OEIS Frontend

A018828 Numbers n such that n is a substring of its square (both n and n squared in base 4) (written in base 10).

Table of values

List of values