60590

Appears in sequences

• Sum of 11 positive 9th powers.at n=36A004800
• Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,2.at n=5A037502
• a(n) = Sum_{k=0..n}((binomial(2*k,k)*Sum_{i=0..n-k}(binomial(k+1,n-k-i)*binomial(k+i,k)))/(k+1)^2)*(n+1).at n=8A270661