0,4

Binomial transform of A084152.

a(n)=(5^n-2*2^n+(-1)^n)/18; G.f.: x^2/((1+x)(1-2x)(1-5x)); E.g.f. : exp(x)(exp(2x)-exp(-x))^2/18=(exp(5x)-2exp(2x)+exp(-x))/18.

Sequence in context: A022730 A099432 A072260 this_sequence A086314 A086091 A081893

Adjacent sequences: A084150 A084151 A084152 this_sequence A084154 A084155 A084156

easy,nonn

Paul Barry (pbarry(AT)wit.ie), May 16 2003