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Table of n, a(n) for n=0..26.
Select[Binomial[Range+2, 3], EvenQ]^2 (* Harvey P. Dale, Jan 19 2012 *)
Cf. A000292, A015220.
Sequence in context: A016958 A108677 A001249 * A052206 A169721 A125326
Adjacent sequences: A014793 A014794 A014795 * A014797 A014798 A014799
Mohammad K. Azarian
More terms from Erich Friedman.