# A017577 (b-file synthesized from sequence entry) 0 262144 1 68719476736 2 10578455953408 3 262144000000000 4 2779905883635712 5 18014398509481984 6 84590643846578176 7 316478381828866048 8 1000000000000000000 9 2773078757450186752 10 6930988311686938624 11 15916595351771938816 12 34068690316840665088 13 68719476736000000000