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A111443 Least square beginning with the digit reversal of n^2. 0
1, 4, 9, 61009, 529, 63001, 9409, 4624, 1849, 1, 121, 441, 961, 69169, 522729, 652864, 982081, 423801, 16384, 4, 144, 484, 925444, 675684, 5262436, 676, 927369, 487204, 14884, 9, 169, 42016324, 9801, 651117289, 5221225, 692110864, 96314596 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(10n) = a(n). a(10^n) = 1. a(k) = k^2 if k^2 is a palindromic square. (Comment corrected by David Wasserman, Jan 21 2009)

LINKS

Table of n, a(n) for n=1..37.

FORMULA

a(n) = A018796(A004086(n^2)). [From David Wasserman, Jan 21 2009]

EXAMPLE

a(8) = 4624 = 68^2 beginning with 46 the digit reversal of 64 = 8^2.

CROSSREFS

Sequence in context: A258660 A260305 A229338 * A299118 A276272 A331450

Adjacent sequences:  A111440 A111441 A111442 * A111444 A111445 A111446

KEYWORD

base,easy,less,nonn

AUTHOR

Amarnath Murthy, Aug 03 2005

EXTENSIONS

Corrected and extended by David Wasserman, Jan 21 2009

STATUS

approved

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Last modified September 23 18:51 EDT 2020. Contains 337315 sequences. (Running on oeis4.)