Number of chiral non-crossing partition patterns of n points on a circle, divided by 2.

A111276

Number of chiral non-crossing partition patterns of n points on a circle, divided by 2.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =4a(6) =14a(7) =60a(8) =210a(9) =728a(10) =2442a(11) =8252a(12) =27716a(13) =93924a(14) =319964a(15) =1098900a(16) =3800928a(17) =13244836a(18) =46460738a(19) =164015272a(20) =582353976a(21) =2078812492a(22) =7457141650a(23) =26871707908a(24) =97236327900a(25) =353213328024

External references