38264domain: NAppears in sequencesNumber of binary strings of length n with no substrings equal to 0000, 0110, or 1111.at n=20A164441Number of tilings of a 5 X n rectangle using n pentominoes of shapes F, U, N.at n=28A234931Expansion of the e.g.f. (exp(x) / (5 - 4*exp(x)))^(2/5).at n=5A367374