296208
domain: N
Appears in sequences
- a(n) = n^2*(n^2 - 1)/4.at n=33A006011
- Number of "bifix-free" words of length n over a three-letter alphabet.at n=12A019308
- Number of ternary words of length n (beginning with 0) with autocorrelation function 2^(n-1).at n=12A045694
- Number of (w,x,y,z) with all terms in {0,...,n}, w even and x odd.at n=32A212766
- List of e-perfect numbers that are not e-unitary perfect.at n=4A322858