A080334 n^2 read backwards, for n = 51, 50, 49, ...

1062, 52, 1042, 4032, 9022, 6112, 5202, 6391, 9481, 4671, 1861, 61, 1251, 4441, 9631, 6921, 5221, 6511, 9801, 4201, 169, 9, 148, 487, 927, 676, 526, 675, 925, 484, 144, 4, 163, 423, 982, 652, 522, 691, 961, 441, 121, 1, 18, 46, 94, 63, 52, 61, 9, 4, 1

Offset: 51

Author

N. J. A. Sloane, Mar 19 2003

Keywords

• nonn
• base

Comments

This sequence breaks all the rules of the database, especially since the terms are in reverse order. It is included only because segments of it are sometimes given as puzzles.

Links

• Index entry for sequences related to reversing digits of squares

Crossrefs

Cf. A002942 (which is the usual version of this sequence), A000290.

Programs

Mathematica

IntegerReverse/@(Range[51,1,-1]^2) (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Jul 25 2019 *)

Formula

Write the squares backwards: 1, 4, 9, 61, 52, 63, 94, 46, 18, 1, 121, 441, 961, 691, ..., then reverse the sequence.