526024740930
domain: N
Appears in sequences
- Convolution of Catalan numbers A000108 with Catalan numbers but C(0)=1 replaced by 3.at n=22A038629
- Squarefree part of C(2n,n), the central binomial numbers: the smallest number such that a(n)*C(2n,n) is a square.at n=22A069113
- Largest squarefree number dividing central binomial coefficient A000984(n).at n=22A080397
- a(n) is the smallest integer of the form a*b*c.../p*q*r..., where the numerator and the denominator contain n numbers each and a,b,c,...p,q,r... are all the integers from 1 to 2n.at n=21A085057
- The radical of the swinging factorial A056040 for odd indices.at n=22A163640
- Numerator of binomial(2n,n)/(2n).at n=21A201058
- Matching number of the n-odd graph.at n=21A301560
- Denominator of expected payoff in the "Guessing Card Colors" game with a 2n-card deck, using an optimal strategy.at n=21A322756