Number of strict chains of divisors in A130091 (numbers with distinct prime multiplicities) starting with a proper divisor of n! and ending with 1.

A337075

Number of strict chains of divisors in A130091 (numbers with distinct prime multiplicities) starting with a proper divisor of n! and ending with 1.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =3a(4) =14a(5) =48a(6) =384a(7) =1308a(8) =40288a(9) =933848a(10) =21077680a(11) =75690016a(12) =5471262080a(13) =7964665440a(14) =54595767744

External references