9617286240
domain: N
Appears in sequences
- Apéry numbers: n*C(2*n,n).at n=16A005430
- a(1)=1; for n >= 1, a(n+1) = lcm(a(n),n) / gcd(a(n),n).at n=32A008339
- a(1) = 1, a(n) = lcm(n, a(n-1)) / gcd(n, a(n-1)).at n=31A077139
- a(0) = 1; for n>0, if gcd(a(n-1),n) = 1 then a(n) = n*a(n-1) else a(n) = least integer multiple of a(n-1)/n.at n=32A094299
- a(n) = (2n+0^n)*C(4n,2n).at n=8A166337
- a(n) = n!/([(n-1)/2]!*[(n+1)/2]!) for n>0, a(0)=0, and where [ ] = floor.at n=32A212303
- Number of profiles in domino tiling of a 2*n checkboard.at n=32A218073
- Lexicographically earliest sequence such that for any n>1, n=u*v, where u/v = a(n)/a(n-1) in reduced form.at n=31A260850
- A260850 sorted into increasing order and duplicates omitted.at n=35A370974