Numbers k such that 3!*(2k-4)!/(k!*(k-1)!) is an integer.

Terms

a(0) =2a(1) =3a(2) =4a(3) =7a(4) =13a(5) =16a(6) =19a(7) =21a(8) =29a(9) =43a(10) =46a(11) =67a(12) =78a(13) =85a(14) =89a(15) =92a(16) =100a(17) =105a(18) =111a(19) =121a(20) =127a(21) =141a(22) =154a(23) =157a(24) =171a(25) =188a(26) =191a(27) =199a(28) =205a(29) =210