Numbers k such that 6!*(2*k-7)!/(k!*(k-1)!) is an integer.

Terms

a(0) =4a(1) =6a(2) =7a(3) =991a(4) =2481a(5) =3479a(6) =6163a(7) =6581a(8) =8178a(9) =8179a(10) =9272a(11) =10288a(12) =12195a(13) =13067a(14) =13976a(15) =15199a(16) =15813a(17) =16172a(18) =18371a(19) =18686a(20) =18723a(21) =18747a(22) =19294a(23) =19438a(24) =19506a(25) =23531a(26) =26198a(27) =26315a(28) =26678a(29) =27877