58580

Appears in sequences

• a(n) = floor(n(n-1)(n-2)(n-3)/19).at n=34A011929
• Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime.at n=9A251943
• Numbers x such that sigma(x) = sigma(y), with x<>y, where y is the 10's complement mod 10 of the digits of x.at n=26A300447