

A179101


Numbers which are not the sum of exactly one positive square and a sum of squaresminus1.


0




OFFSET

1,1


COMMENTS

Sequence motivated by the study of certain replicate tilings, where each tile can be replaced by a square number of tiles.
Adding multiples of 3=2^21 to the numbers 1=1^2, 9=3^2 and 17=3^2+(3^21), one obtains all the integers not in the sequence.


LINKS

Table of n, a(n) for n=1..7.


CROSSREFS

Cf. A000290 (squares), A005563 (squaresminus1), A123120, A078135.
Sequence in context: A291693 A266542 A095172 * A127312 A081830 A238006
Adjacent sequences: A179098 A179099 A179100 * A179102 A179103 A179104


KEYWORD

fini,full,nonn


AUTHOR

Benoit Jubin, Jun 29 2010


STATUS

approved



