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

Author

Amarnath Murthy, Jan 09 2002

Keywords

• nonn
• base

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.

Extensions

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

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