Number of noncrossing partitions up to rotation and reflection composed of n blocks of size 5.
A303871
Number of noncrossing partitions up to rotation and reflection composed of n blocks of size 5.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =11a(5) =60a(6) =423a(7) =3381a(8) =29335a(9) =266703a(10) =2507232a(11) =24177705a(12) =238003111a(13) =2383370158a(14) =24217426745a(15) =249182213284
External references
- oeis: A303871