Number of set partitions of [n] into exactly seven parts such that no part contains two elements with a circular distance less than three.
A261483
Number of set partitions of [n] into exactly seven parts such that no part contains two elements with a circular distance less than three.
Terms
- a(0) =1a(1) =12a(2) =102a(3) =720a(4) =4587a(5) =27326a(6) =155571a(7) =858023a(8) =4623388a(9) =24488768a(10) =128053146a(11) =663054996a(12) =3407483161a(13) =17409523182a(14) =88545747922a(15) =448749879028
External references
- oeis: A261483