# A193476 (b-file synthesized from sequence entry) 0 2 1 56 2 992 3 16256 4 261632 5 4192256 6 67100672 7 1073709056 8 17179738112 9 274877382656 10 628292059136 11 70368735789056 12 1125899873288192 13 18014398375264256 14 288230375614840832 15 4611686016279904256 16 73786976286248271872 17 1180591620683051565056