Number of partitions of [n] whose blocks are ordered with increasing least elements and where block i has size at least i.
A362635
Number of partitions of [n] whose blocks are ordered with increasing least elements and where block i has size at least i.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =5a(5) =12a(6) =31a(7) =97a(8) =351a(9) =1318a(10) =4963a(11) =19391a(12) =82531a(13) =386704a(14) =1926907a(15) =9811733a(16) =50252175a(17) =261462430a(18) =1415025895a(19) =8118274255a(20) =49355434511a(21) =312266428040
External references
- oeis: A362635