30501

Appears in sequences

• Expansion of 1/((1-x)*(1-7x)*(1-10x)).at n=4A016252
• a(n) = floor(7^7/n).at n=26A057069
• Sum of digits of numbers between 0 and (2/9)*(10^n-1).at n=4A089904
• Expansion of -x*(x^2+1)*(x+1)^2/((2*x^3+x^2-1)*(x^4+1)).at n=25A107852
• Numbers k such that k and k^2 use only the digits 0, 1, 3, 5 and 9.at n=12A136846
• Number of n X 4 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=14A207165
• G.f.: Sum_{n>=0} (n+1)*(n+2)/2 * (x + x^n)^n.at n=52A325998
• Numbers m such that d(1)^1 + d(2)^2 + ... + d(p)^k = d(1)! + d(2)! + ... + d(k)!, where d(i), i=1..k, are the digits of m.at n=40A342945