Number of tilings of a sphinx of order n by elementary sphinxes (i.e., sphinxes of order 1).

A279887

Number of tilings of a sphinx of order n by elementary sphinxes (i.e., sphinxes of order 1).

Terms

    a(0) =1a(1) =1a(2) =4a(3) =16a(4) =153a(5) =71838a(6) =5965398a(7) =2614508085

External references