# A356576 (b-file synthesized from sequence entry) 0 1 1 0 2 2 3 0 4 24 5 -55 6 630 7 -2723 8 30968 9 -294327 10 3047320 11 -30255379 12 387690732 13 -5565964391 14 77090414492 15 -1114263777885 16 18473122449616 17 -331776991760303 18 6106973926830192 19 -112710455017397639 20 2233663985151902860 21 -50049383051597936559