23587200

Appears in sequences

• a(n) = (n+3)*n!/2.at n=9A038720
• Expansion of e.g.f. (1-x)/(1-2*x+x^2-x^3).at n=9A052691
• Number of multiples of n that can be obtained by permuting the digits of number formed by the concatenation of first n numbers.at n=10A077193
• a(1)=1. a(n) = a(n-1)*(b(n-1)+1), where {b(k)} is the concatenated list of the positive divisors of the terms of {a(k)}.at n=14A129643
• Positions of records in A358099, i.e., integers whose number of divisors whose decimal digits are in strictly decreasing order sets a new record.at n=34A358101
• Integers k such that A000010(k) <= A008480(k).at n=11A364750
• Numbers whose divisors have a mean abundancy index that is larger than 3.at n=6A374779