51020

Appears in sequences

• Numbers n which appear at least twice in A037278(n), concatenation of their divisors written in base 10.at n=41A248323
• Number of nX6 0..1 arrays with no element equal to more than two of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.at n=11A281467
• Numbers that can be written as the product of two divisors greater than 1 such that the number is contained in the string concatenation of the divisors.at n=40A355790