# A098716 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 5 5 13 6 49 7 169 8 972 9 5559 10 52979 11 526450 12 10617149 13 214475363 14 9035782113 15 476715641982 16 51820049305123 17 7479565064189887 18 2645418340373829359 19 1318520401609595443835 20 1774758704783778068230273