A174594 a(n) is the smallest number that is less than the sum of the square of its digits by n, or 0 if no such number exists.

1, 0, 2, 14, 25, 56, 3, 0, 0, 36, 0, 15, 4, 0, 26, 0, 0, 57, 47, 0, 5, 16, 0, 0, 0, 0, 27, 0, 0, 0, 6, 58, 48, 17, 0, 38, 0, 0, 0, 0, 28, 0, 7, 0, 0, 0, 0, 18, 49, 0, 0, 39, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 19, 0, 0, 0, 0, 0, 0, 0, 0, 9

Offset

0,3

Links

Table of n, a(n) for n=0..72.

Example

a(3) = 14, because 1^2 + 4^2 - 14 = 3, and no number smaller than 14 has this property.

Crossrefs

Cf. A003132, A174593.

Sequence in context: A226334 A109255 A285990 * A051222 A194411 A017545

Adjacent sequences: A174591 A174592 A174593 * A174595 A174596 A174597

Keyword

base,nonn

Author

Claudio Meller, Mar 23 2010

Extensions

a(0)=1 prepended by Michel Marcus, Feb 05 2014

Status

approved