Number of (n+2) X 6 binary arrays with each 3 X 3 subblock having rows and columns in lexicographically nondecreasing order.

A184543

Number of (n+2) X 6 binary arrays with each 3 X 3 subblock having rows and columns in lexicographically nondecreasing order.

Terms

    a(0) =220a(1) =537a(2) =1048a(3) =1837a(4) =3024a(5) =4774a(6) =7307a(7) =10909a(8) =15944a(9) =22867a(10) =32238a(11) =44737a(12) =61180a(13) =82536a(14) =109945a(15) =144737a(16) =188452a(17) =242861a(18) =309988a(19) =392133a(20) =491896a(21) =612202a(22) =756327a(23) =927925a(24) =1131056a(25) =1370215a(26) =1650362a(27) =1976953a(28) =2355972a(29) =2793964

External references