50010

Appears in sequences

• Sum of n-th row of A081551.at n=4A081553
• 5-Smith numbers.at n=11A103126
• Numbers that require exactly five chisel strokes when written in Roman numerals.at n=39A133192
• Numbers k such that k and k^2 use only the digits 0, 1, 2 and 5.at n=53A136822
• Consider a number k with m decimal digits, the prefix p of length m-1 and the suffix s of length m-1. The sequence lists the numbers k such that sigma(k) = sigma(p)*sigma(s) where sigma(x) is the sum of the divisors of x.at n=28A244313
• Number of length-4 0..n arrays with no repeated value differing from the previous repeated value by other than plus or minus one modulo n+1.at n=13A269679
• G.f.: 1/(1-x)^4 * Product_{k>=1} (1 + x^k).at n=21A325952