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A116502 Squares with structure dmdmd, where d is a single digit and m a string of digits. 2
69696, 56722567225, 95540955409, 1108033241108033241, 1220096161220096161, 4312080784312080784, 4432132964432132964, 4880384644880384644, 9024307889024307889, 9972299169972299169 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

Erich Friedman, Puzzles of the Week, http://www2.stetson.edu/~efriedma/mathpuzzle/ [From N. J. A. Sloane, Mar 12 2011]

EXAMPLE

309097^2 = a(3) = 9[5540]9[5540]9.

CROSSREFS

Cf. A116500, A116501.

Sequence in context: A089218 A053075 A154818 * A190934 A043600 A043858

Adjacent sequences:  A116499 A116500 A116501 * A116503 A116504 A116505

KEYWORD

base,nonn,more

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 18 2006

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Last modified February 16 21:47 EST 2012. Contains 205978 sequences.