21967520066domain: NAppears in sequencesA Fibonacci convolution.at n=25A099485Lower (2/3)-midsequence of (F(2n)) and (F(2n+1)), where F=A000045 (Fibonacci numbers); see Comments.at n=25A387784Upper (2/3)-midsequence of (F(2n)) and (F(2n+1)), where F=A000045 (Fibonacci numbers); see Comments.at n=25A387785