5400000

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j)*10^j.at n=25A038264
• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*10^j.at n=26A038300
• Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*6^j.at n=23A038308
• Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*9^j.at n=22A038311
• Total number of digits in all n-digit nonnegative integers.at n=5A113119
• Powerful(1) numbers (A001694) whose digit reversal is a triangular number.at n=11A115691
• a(n) = 9*n*10^(n-1).at n=5A212704
• Triangle of coefficients of polynomials equal permanent of the n X n matrix [1,2,...,n; n*x+1, n*x+2, ..., n*x+n; ...; (n-1)*n*x+1, (n-1)*n*x+2, ...,(n-1)*n*x+n].at n=10A232818
• Expansion of 60*x*(1 + 4*x + x^2) / (1 - x)^5.at n=23A316458
• Numbers k for which k = gcd(k', k"), where k' is the arithmetic derivative of k (A003415) and k" is the second derivative of k (A068346).at n=34A361078