cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A356071 Numbers whose square is in A108571.

Original entry on oeis.org

1, 20864888, 23309765, 146095088, 725027284, 745400258, 803458304, 810273142, 816409484, 1663345356, 2970502211, 5035530306, 5705842932, 5801143392, 5969549784, 6143081912, 6582975516, 6801076116, 6828208884, 6830325216, 6911416408, 7248217206, 7248822984, 7317408465
Offset: 1

Views

Author

Jianing Song, Jul 25 2022

Keywords

Comments

Square root of A181392. The last term is 999999999893438428238.
There are no perfect powers beyond 1 in this sequence; see the comment in A181392.

Examples

			23309765 is a term since 23309765^2 = 543345144355225 has 1 digit '1', 2 digits '2', 3 digits '3', 4 digits '4' and 5 digits '5'.
		

Crossrefs

Programs

  • Mathematica
    Map[Sqrt, Import["https://oeis.org/A181392/b181392.txt", "Data"][[1 ;; 24, -1]] ] (* Michael De Vlieger, Jul 25 2022, computed from b-file at A181392 *)