Number of chordless cycles in the n-triangular honeycomb acute knight graph.

A370227

Number of chordless cycles in the n-triangular honeycomb acute knight graph.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =1a(7) =3a(8) =9a(9) =25a(10) =69a(11) =201a(12) =620a(13) =1923a(14) =6339a(15) =22238a(16) =82443a(17) =333723a(18) =1490051a(19) =7241421

External references