# A111976 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 4 4 16 5 96 6 896 7 13568 8 345088 9 15112192 10 1159913472 11 158164664320 12 38737429987328 13 17197276791701504 14 13946909814794223616 15 20801835304287183306752 16 57394078732651064041930752