44300
domain: N
Appears in sequences
- Coefficient of q^1 in nu(n), where nu(0)=1, nu(1)=b and, for n>=2, nu(n)=b*nu(n-1)+lambda*(1+q+q^2+...+q^(n-2))*nu(n-2) with (b,lambda)=(1,2).at n=14A074352
- G.f.: Product((1+x^i)/(1-x^i),i=1..n-1)/(1-x^n), with n = 8.at n=30A091779
- Number of nX3 zero-sum -1..1 arrays with rows and columns lexicographically nondecreasing.at n=5A202028
- Number of nX6 zero-sum -1..1 arrays with rows and columns lexicographically nondecreasing.at n=2A202031
- T(n,k)=Number of nXk zero-sum -1..1 arrays with rows and columns lexicographically nondecreasing.at n=30A202033
- T(n,k)=Number of nXk zero-sum -1..1 arrays with rows and columns lexicographically nondecreasing.at n=33A202033
- Growth series for group with presentation < S, T : S^2 = T^3 = (S*T)^9 = 1 >.at n=32A298811