20514
domain: N
Appears in sequences
- Number of forests with n unlabeled nodes.at n=15A005195
- a(n) = T(2n, n-2), T given by A026780.at n=5A026783
- Number of partitions satisfying cn(2,5) < cn(1,5) + cn(4,5) and cn(3,5) < cn(1,5) + cn(4,5).at n=38A039889
- Denominators of average numbers of trees in a forest on n nodes.at n=14A095132
- Number of (n+1)X3 0..2 arrays with every 2X2 subblock sum greater than 4.at n=2A184490
- Number of (n+1)X4 0..2 arrays with every 2X2 subblock sum greater than 4.at n=1A184491
- T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock sum greater than 4.at n=7A184497
- T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock sum greater than 4.at n=8A184497
- Sum of distinct nonzero sixth powers.at n=29A194769
- Numbers which are the sums of consecutive sixth powers.at n=14A217846
- Expansion of the o.g.f. (1 + 8*x + 10*x^2 + 8*x^3 + x^4)/((1 - x)^4*(1 + x)^2).at n=25A342362