Number of set partitions of [n] with a strongly unimodal block size list.

A275389

Number of set partitions of [n] with a strongly unimodal block size list.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =4a(4) =7a(5) =19a(6) =71a(7) =219a(8) =759a(9) =2697a(10) =12395a(11) =47477a(12) =231950a(13) =1040116a(14) =4851742a(15) =26690821a(16) =131478031a(17) =736418510a(18) =4262619682a(19) =24680045903a(20) =145629814329a(21) =935900941506

External references