# A139306 (b-file synthesized from sequence entry) 1 8 2 32 3 512 4 8192 5 33554432 6 8589934592 7 137438953472 8 2305843009213693952 9 2658455991569831745807614120560689152 10 191561942608236107294793378393788647952342390272950272