671846400

Appears in sequences

• Shifts left when MASKCONVolved with itself.at n=21A062177
• G.f. satisfies: A(x) = exp( Sum_{n>=1} [Sum_{k=0..2*n} T(n,k)^2 * x^k] / A(x)^n * x^n/n ), where T(n,k) is the coefficient of x^k in (1+2*x)^n*(1+3*x)^n.at n=18A251688
• A multiplicative encoding (compressed) for the exponents of 2 obtained when using Shevelev's algorithm for computing A002326.at n=18A292265
• Positions of records in A050377, number of ways to factor n into "Fermi-Dirac primes" (A050376).at n=34A330687
• Numbers that are expressible as the product of the number of distinct prime factors of preceding integers.at n=21A348882