Number of set partitions of [n] with distinct block sizes and one of the block sizes is 1.
A327876
Number of set partitions of [n] with distinct block sizes and one of the block sizes is 1.
Terms
- a(0) =0a(1) =1a(2) =0a(3) =3a(4) =4a(5) =5a(6) =66a(7) =112a(8) =456a(9) =765a(10) =15070a(11) =31856a(12) =150756a(13) =663962a(14) =1943046a(15) =44316105a(16) =127348864a(17) =661449549a(18) =3220447446a(19) =20913769072a(20) =68889553260
External references
- oeis: A327876