A061226 a(n) = n^2 + (n^2 with digits reversed).

0, 2, 8, 18, 77, 77, 99, 143, 110, 99, 101, 242, 585, 1130, 887, 747, 908, 1271, 747, 524, 404, 585, 968, 1454, 1251, 1151, 1352, 1656, 1271, 989, 909, 1130, 5225, 10890, 7667, 6446, 8217, 11000, 5885, 2772, 1661, 3542, 6435, 11330, 8327, 7227, 8228

Offset: 0

Author

Amarnath Murthy, Apr 22 2001

Keywords

• nonn
• base
• easy
• look

Examples

			a(4) = 77 = 16 + 61; a(7) = 143 = 49 + 94.
		

Links

• Seiichi Manyama, Table of n, a(n) for n = 0..10000 (terms 0..1000 from Harry J. Smith)

Crossrefs

Cf. A000290, A002942, A056964.

Programs

Maple

R:= n-> (s-> parse(cat(s[-i]$i=1..length(s))))(""||n):
a:= n-> (s-> s+R(s))(n^2):
seq(a(n), n=0..50);  # Alois P. Heinz, Sep 24 2018

Mathematica

nsr[n_]:=Module[{n2=n^2},n2+FromDigits[Reverse[IntegerDigits[n2]]]]; Array[ nsr,50,0] (* Harvey P. Dale, Jul 23 2012 *)

PARI

{a(n) = n^2+fromdigits(Vecrev(digits(n^2)))} \\ Seiichi Manyama, Sep 24 2018

Formula

a(n) = A000290(n) + A002942(n).

Extensions

More terms from Patrick De Geest, May 29 2001