Boustrophedon transform of factorials beginning with 1, cf. A000142.

A230961

Boustrophedon transform of factorials beginning with 1, cf. A000142.

Terms

    a(0) =1a(1) =3a(2) =11a(3) =50a(4) =273a(5) =1746a(6) =12823a(7) =106462a(8) =986689a(9) =10103074a(10) =113309991a(11) =1381835454a(12) =18209834849a(13) =257911743506

External references