913611076domain: NAppears in sequencesMember r=15 of the family of Chebyshev sequences S_r(n) defined in A092184.at n=9A098300Number of nX5 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 0 1 1 vertically.at n=25A207120