1,2

Fibonacci(2n+3) - 2n - 2.

seq(add((binomial(2*n-k, k)), k=2..n), n=2..23); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Sep 16 2007

Sequence in context: A053346 A027964 A078501 this_sequence A135026 A027138 A050476

Adjacent sequences: A027934 A027935 A027936 this_sequence A027938 A027939 A027940

nonn

Clark Kimberling (ck6(AT)evansville.edu)