# A012677 (b-file synthesized from sequence entry) 0 2 1 -16 2 200 3 1024 4 -765152 5 142708480 6 -27846619008 7 6367245656064 8 -1746851978927616 9 576681176370802688 10 -228223153506206857216 11 107581169796591942238208 12 -59934829639539220412555264