89845

Appears in sequences

• Binomial transform of A066247 (characteristic function of composite numbers).at n=17A143962
• Row sums of A257241, Stifel's version of the arithmetical triangle.at n=16A258143
• a(n) = 2^n+(1+(n mod 2)/2)*C(n+1,floor((n+(n mod 2))/2))-1.at n=16A261682