a(n) = f(n,n) where f(0,n) = f(n,0) = Fibonacci(n) and f(m,n) = f(m-1,n) + f(m,n-1) + f(m-1,n-1).

A344576

a(n) = f(n,n) where f(0,n) = f(n,0) = Fibonacci(n) and f(m,n) = f(m-1,n) + f(m,n-1) + f(m-1,n-1).

Terms

    a(0) =0a(1) =2a(2) =10a(3) =52a(4) =278a(5) =1510a(6) =8288a(7) =45834a(8) =254922a(9) =1424252a(10) =7986550a(11) =44921582a(12) =253320352a(13) =1431678194a(14) =8106897418a(15) =45982821860a(16) =261206625526

External references