a(n) = lcm(denominator(p(n, x))), where p(n, x) are the rational polynomials defined in A342321.

Terms

a(0) =1a(1) =2a(2) =6a(3) =12a(4) =60a(5) =30a(6) =210a(7) =280a(8) =2520a(9) =1260a(10) =6930a(11) =4620a(12) =60060a(13) =6006a(14) =30030a(15) =240240a(16) =4084080a(17) =1225224a(18) =11639628a(19) =2771340a(20) =19399380a(21) =1939938a(22) =44618574a(23) =178474296a(24) =4461857400a(25) =106234700a(26) =1434168450a(27) =20078358300a(28) =582272390700a(29) =19409079690