A075056 a(1) = 0, then smallest square such that a(n+1) - a(n) is a palindrome.

0, 1, 4, 9, 16, 25, 36, 5041, 5929, 35721, 68644, 69169, 76176, 130321, 214369, 287296, 4368100, 4464769, 11874916, 15000129, 247464361, 593019904, 806787216, 1181090689, 1300323600, 1310367601, 1352400625, 1394499649

Offset

1,3

Links

Sean A. Irvine, Table of n, a(n) for n = 1..90

Example

5041 follows 36 as 5041 - 36 = 5005.

Crossrefs

Cf. A000290, A002113.

Sequence in context: A238203 A068802 A254073 * A022779 A265078 A266782

Adjacent sequences: A075053 A075054 A075055 * A075057 A075058 A075059

Keyword

base,nonn

Author

Amarnath Murthy, Sep 07 2002

Extensions

More terms from Jason Earls, Sep 09 2002

Offset corrected by Sean A. Irvine, Feb 06 2025

Status

approved