45616

Appears in sequences

• Triangle T, read by rows, that satisfies: T(n,k) = [T^2](n-1,k) for n>k+1>=1, with T(n,n) = 1 and T(n+1,n) = n+1 for n>=0, where T^2 is the matrix square of T.at n=46A109152
• Column 1 of triangle A109152.at n=8A109154
• Row sums of triangle A131252.at n=17A131253
• Number of compositions of n with parts in N which avoid the pattern 221.at n=17A134044
• Define K(n) = Integral_{t=-1..1} t^(2n)*(1-t^2)^(2n)/(1+it)^(3n+1)dt and write K(n) = d(n)*Pi - a(n)/c(n) where a(n), d(n), c(n) are positive integers; sequence gives a(n).at n=1A305997
• Numbers k such that at least 7 of k, k+1, ..., k+9 are divisible by their least prime factor squared.at n=4A328817