3378745

Appears in sequences

• a(1)=1, a(n) = n*4^(n-1) + a(n-1).at n=9A014916
• a(n) = ((3*n+1)*2^n - (-1)^n)/9.at n=19A045883
• a(n) = 1 + 2*n + 3*n^2 + 4*n^3 + 5*n^4 + 6*n^5 + 7*n^6 + 8*n^7 + 9*n^8 + 10*n^9.at n=4A113632
• Expansion of 1 / ( (1+x)*(2*x+1)*(-1+2*x)^2 ).at n=19A140787