A (6,2)-sequence.A002247A (6,2)-sequence.Terms a(0) =0a(1) =6a(2) =2a(3) =1a(4) =10a(5) =8a(6) =11a(7) =7a(8) =4a(9) =5a(10) =9a(11) =3External referencesoeis: A002247