48754domain: NAppears in sequencesLeading column of triangle in A176463.at n=18A176503Number of length 5+2 0..n arrays with every three consecutive terms having the sum of some two elements equal to twice the third.at n=36A248438G.f.: Sum_{k>=1} x^(2*k-1)/(1+x^(2*k-1)) * Product_{k>=1} (1+x^k)/(1-x^k).at n=26A305124