# A125783 (b-file synthesized from sequence entry) 0 1 1 4 2 14 3 52 4 217 5 1033 6 5604 7 34416 8 237328 9 1822753 10 15473117 11 144165763 12 1464992791 13 16144683412 14 191967912402 15 2451561765083 16 33487399558154 17 487448547177703 18 7535687673952024 19 123349262218035648