Bessel polynomial y_n(x) evaluated at x=1.

A001515

Bessel polynomial y_n(x) evaluated at x=1.

Terms

    a(0) =1a(1) =2a(2) =7a(3) =37a(4) =266a(5) =2431a(6) =27007a(7) =353522a(8) =5329837a(9) =90960751a(10) =1733584106a(11) =36496226977a(12) =841146804577

External references