Number of nonisomorphic orthogonal arrays OA(8*n+4,4,2,2).

Terms

a(0) =1a(1) =3a(2) =7a(3) =15a(4) =28a(5) =48a(6) =79a(7) =123a(8) =184a(9) =268a(10) =379a(11) =523a(12) =709a(13) =943a(14) =1234a(15) =1594a(16) =2032a(17) =2560a(18) =3194a(19) =3946a(20) =4832a(21) =5872a(22) =7082a(23) =8482a(24) =10097