A074896 Squares written backwards and sorted, duplicates removed.

1, 4, 9, 18, 46, 52, 61, 63, 94, 121, 144, 148, 163, 169, 423, 441, 484, 487, 522, 526, 652, 675, 676, 691, 925, 927, 961, 982, 1042, 1062, 1089, 1251, 1273, 1297, 1405, 1426, 1656, 1674, 1828, 1843, 1861, 4032, 4069, 4072, 4201, 4264, 4276, 4441, 4477

Offset: 1

Author

Jason Earls, Sep 14 2002

Keywords

• nonn
• easy
• base

Examples

			163 is in the sequence as it is 19^2 = 361 written backwards. - _David A. Corneth_, Aug 06 2022
		

Links

• David A. Corneth, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A002942.

Programs

PARI

uptoqdigits(n) = {my(res = List()); forstep(i = 1, sqrtint(10^n), [1,1,1,1,1,1,1,1,2], listput(res, fromdigits(Vecrev(digits(i^2))))); Set(res)} \\ David A. Corneth, Aug 06 2022