167481
domain: N
Appears in sequences
- a(1)=1, a(n) = n*4^(n-1) + a(n-1).at n=7A014916
- a(n) = ((3*n+1)*2^n - (-1)^n)/9.at n=15A045883
- Triangle read by rows, generated from (..., 3, 2, 1).at n=62A108283
- a(n) = 1 + 2*n + 3*n^2 + 4*n^3 + 5*n^4 + 6*n^5 + 7*n^6 + 8*n^7.at n=4A113618
- Expansion of 1 / ( (1+x)*(2*x+1)*(-1+2*x)^2 ).at n=15A140787
- a(0)=0, a(1)=1, a(n) = min{4 a(k) + (4^(n-k)-1)/3, k=0..(n-1)} for n>=2.at n=36A259665
- The number of hanging vertically stable self-avoiding walks of length n on a 2D square lattice where only the connecting rods have mass.at n=17A335596