59432domain: NAppears in sequencesSuper ballot numbers: 60*(2n)!/(n!*(n+3)!).at n=12A007272Fibonacci sequence beginning 0, 23.at n=18A022357Catalan-like formula: a(n) = binomial(6*n, 3*n+1)/(9*n+6).at n=3A065424Indices of centered hexagonal numbers (A003215) which are also pentagonal numbers (A000326).at n=3A254137