# A017526 (b-file synthesized from sequence entry) 0 0 1 2985984 2 191102976 3 2176782336 4 12230590464 5 46656000000 6 139314069504 7 351298031616 8 782757789696 9 1586874322944 10 2985984000000 11 5289852801024 12 8916100448256 13 14412774445056 14 22483074023424