%I #3 Mar 31 2012 10:25:49
%S 1,2,12,360,151200,2095632000,7551819475200000,
%T 7286477990937425280000000,16326289449604557795871699200000000000,
%U 48235535472088469901966394717904245153920000000000000
%N a(n) = Product prime1(k)^prime1(n-k+1), k = 1 to n.
%C Exponents of the prime factorization are the primes in reverse order. Similar to A087315, but where the largest prime factor has an exponent of one instead of two (and 1^n is understood to be the first term).
%F a(n) = Product prime1(k)^prime1(n-k+1), k = 1 to n, where prime1 is the sequence of primes prepended with 1.
%e a(5) = 1^7 * 2^5 * 3^3 * 5^2 * 7^1 = 151200
%Y Cf. A087315, A076265, A076265.
%K nonn
%O 1,2
%A _Darse Billings_, Sep 14 2007
|