# A085866 (b-file synthesized from sequence entry) 1 3 2 6 3 12 4 48 5 768 6 196608 7 12884901888 8 55340232221128654848 9 1020847100762815390390123822295304634368 10 347376267711948586270712955026063723559809953996921692118372752023739388919808