# A012156 (b-file synthesized from sequence entry) 0 1 1 5 2 121 3 7069 4 763057 5 132103157 6 33527321257 7 11731117858573 8 5412661283979361 9 3184128808387236581 10 2326120405922560979929 11 2066008261961436163683709 12 2192446490036211173903631121