Number of graphs on n labeled nodes with degree at most 2.
A136281
Number of graphs on n labeled nodes with degree at most 2.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =8a(4) =41a(5) =253a(6) =1858a(7) =15796a(8) =152219a(9) =1638323a(10) =19467494a(11) =252998224a(12) =3568259503a(13) =54263159347a(14) =884834059454
External references
- oeis: A136281