3750000

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*10^j.at n=25A038252
• Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*5^j.at n=23A038307
• a(n) = n^5*(7*n+5)/2.at n=10A229148
• Number of ascending runs in {1,...,10}^n.at n=6A229284
• LB numbers: positive integers of the form m = a*10^k+b (with a > 0 and b < 10^k) satisfying two properties: 1) the set of prime factors of m is the union of the sets of prime factors of a and b; and 2) A001222(m) = A001222(a) + A001222(b).at n=35A267856
• Number of n X 1 0..5 arrays with some element plus some horizontally or vertically adjacent neighbor totalling five exactly once.at n=8A269760