# A132627 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 60 4 2960 5 454072 6 216266368 7 328381917376 8 1646431825247488 9 28147649085162289088 10 1682689316516069630268928 11 358405429181246295625283815424 12 275845379756819156941815068510302208