2433740400domain: NAppears in sequencesa(n+1) = a(n)/n if n|a(n) else a(n)*n, a(1) = 1.at n=25A008336Denominator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=11.at n=12A145630A008336 sorted and duplicates removed.at n=27A370968