a(n) = 2^r*3^s where r = n(n+1)/2 and s = n(n-1)/2.
A081955
a(n) = 2^r*3^s where r = n(n+1)/2 and s = n(n-1)/2.
Terms
- a(0) =1a(1) =2a(2) =24a(3) =1728a(4) =746496a(5) =1934917632
External references
- oeis: A081955
A081955
a(n) = 2^r*3^s where r = n(n+1)/2 and s = n(n-1)/2.