62164

Appears in sequences

• Let M(n) be the n X n matrix m(i,j)=min(i,j) for 1<=i,j<=n; then a(n) is the trace of M(n)^(-7).at n=19A114359
• Numbers n with property that for each single digit d of n, we can also see the decimal expansion of 2^d as a substring of n. Also n may not contain any zero digits.at n=26A135016
• Number of 2 X 2 matrices having all elements in {0,1,...,n} and determinant in the open interval (-n,n).at n=24A211032
• Numbers k for which there exists m such that the sum from 1 to m and the sum from m + 1 to k are both perfect squares.at n=42A388659