1874880

Appears in sequences

• Sum of divisors of Catalan number A000108(n).at n=13A152761
• Expansion of e.g.f.: A(x) = Sum_{n>=0} binomial(x^n + n-1, n).at n=10A191461
• Number of length-7 0..k arrays connected end-around, with no sequence of L<n elements immediately followed by itself (periodic "squarefree").at n=7A215230
• a(n) = n! * Sum_{k=0..floor(n/3)} k^(n - 3*k)/k!.at n=9A355575
• 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=29A358101