# A153951 (b-file synthesized from sequence entry) 0 1 1 2 2 4 3 16 4 48 5 181 6 930 7 8275 8 75027 9 1115868 10 15698357 11 385413794 12 9296853593 13 385316885091 14 15604629751554 15 1064622004776402