A067178 Smallest square whose sum of digits is A056991(n).

1, 4, 16, 9, 64, 49, 169, 576, 289, 1849, 4489, 3969, 17956, 6889, 27889, 69696, 98596, 97969, 499849, 1887876, 698896, 2778889, 4999696, 9696996, 19998784, 46689889, 66699889, 79869969, 277788889, 478996996, 876988996, 3679999569, 1749999889

Offset

1,2

Comments

The smallest square giving a possible digit sum.

Links

Giovanni Resta, Table of n, a(n) for n = 1..94

Amarnath Murthy, Fabricating perfect squares with a given valid digits sum, page 154 in "Generalized partitions and New Ideas on Number Theory and Smarandache Sequences" by A. Murthy and C. Ashbacher

Crossrefs

Cf. A056991, A067179.

Sequence in context: A316274 A337340 A061093 * A346460 A181717 A224173

Adjacent sequences: A067175 A067176 A067177 * A067179 A067180 A067181

Keyword

nonn,base

Author

Amarnath Murthy, Jan 09 2002

Extensions

Corrected and extended by Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 24 2003

Offset corrected. - R. J. Mathar, Aug 26 2009

Status

approved