# A335618 (b-file synthesized from sequence entry) 0 1 1 2 2 16 3 304 4 10496 5 568832 6 44486656 7 4742354944 8 660908343296 9 116642430451712 10 25425572550148096 11 6708171660023824384 12 2106760489114215120896 13 776654121137653931835392 14 332101031506139993274843136 15 163037618505293422657351450624 16 91075662529714266445615040823296