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Table of n, a(n) for n=1..67.
Cf. A128201 (Union of squares and the odd numbers).
Sequence in context: A047412 A182339 A110262 * A118672 A100417 A070089
Adjacent sequences: A176690 A176691 A176692 * A176694 A176695 A176696
Vincenzo Librandi, Apr 24 2010