|
|
A179101
|
|
Numbers which are not the sum of exactly one positive square and a sum of squares-minus-1.
|
|
1
|
|
|
|
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=2^2-1 to the numbers 1=1^2, 9=3^2 and 17=3^2+(3^2-1), one obtains all the integers not in the sequence.
|
|
LINKS
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
fini,full,nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|