A087369 Smallest palindromic square multiple of the n-th palindrome.

1, 4, 9, 4, 5221225, 69696, 1002001, 44944, 9, 121, 484, 69696, 484, 522666037791100950480675576084059001197730666225, 69696, 1002001, 69696, 69696, 10201, 12321, 121, 12100022220012621002222000121, 12122010222622201022121, 123230205292502032321, 102012022050220210201, 94206450305460249, 1000220232126212320220001, 12104402820440121, 40804, 44944

Offset

1,2

Links

Table of n, a(n) for n=1..30.

Example

a(5) = 5221225 = 2285^2.

Crossrefs

Subset of A002779.

Cf. A002778.

Sequence in context: A389978 A280441 A255290 * A200629 A021206 A365730

Adjacent sequences: A087366 A087367 A087368 * A087370 A087371 A087372

Keyword

base,nonn

Author

Amarnath Murthy, Sep 08 2003

Extensions

a(7)-a(13) from Sean A. Irvine, Mar 01 2010

Terms a(14) onward from Max Alekseyev, Apr 02 2025

Status

approved