A087354 Smallest square which is the concatenation of n nonzero squares.

1, 49, 144, 1444, 11449, 1119364, 36144144, 251444449, 991494144, 4914991449, 149991994944, 149991994944, 98191114994449, 118194491449441, 1991164114941444, 9141411499911441, 119499194999141136

Offset

1,2

Links

Table of n, a(n) for n=1..17.

Example

a(4) = 1444 is the concatenation of 1,4,4 and 4.
a(5)=11449 and is not 10404 as zeros are not allowed.

Crossrefs

Sequence in context: A345115 A009404 A316121 * A098442 A088535 A045897

Adjacent sequences: A087351 A087352 A087353 * A087355 A087356 A087357

Keyword

base,nonn

Author

Amarnath Murthy, Sep 08 2003

Extensions

More terms from David Wasserman, May 12 2005

Status

approved