0,2
Row sums of number triangle A122433. Binomial transform is A077859.
a(n)=2*sqrt(3)*cos(2*pi*n/3+pi/6)/3+C(1,n)+C(0,n)
a(n) = -A049347(n) if n>=2 . - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 08 2008
Sequence in context: A116377 A131964 A065339 this_sequence A113706 A054845 A060436
Adjacent sequences: A122431 A122432 A122433 this_sequence A122435 A122436 A122437
easy,sign
Paul Barry (pbarry(AT)wit.ie), Sep 04 2006
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