# A013394 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 90 4 3864 5 326214 6 40991676 7 7059334282 8 1612242903824 9 471247352116174 10 171640057469660548 11 76238487501368295026 12 40569187584659105627992 13 25481546086075766773695990