Boustrophedon transform of factorials, cf. A000142.
A230960
Boustrophedon transform of factorials, cf. A000142.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =17a(4) =73a(5) =381a(6) =2347a(7) =16701a(8) =134993a(9) =1222873a(10) =12279251a(11) =135425553a(12) =1627809401a(13) =21183890469a(14) =296773827547
External references
- oeis: A230960