Numbers k such that k(k+1)(k+2)...(k+19) / (k+(k+1)+(k+2)+...+(k+19)) is an integer.

Terms

a(0) =0a(1) =1a(2) =3a(3) =4a(4) =7a(5) =8a(6) =10a(7) =13a(8) =15a(9) =16a(10) =18a(11) =19a(12) =22a(13) =23a(14) =28a(15) =29a(16) =31a(17) =33a(18) =36a(19) =38a(20) =40a(21) =43a(22) =49a(23) =50a(24) =51a(25) =53a(26) =57a(27) =58a(28) =62a(29) =64