Number of integer partitions of n whose run-lengths are not unimodal.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =1a(11) =1a(12) =2a(13) =4a(14) =6a(15) =10a(16) =16a(17) =24a(18) =33a(19) =51a(20) =70a(21) =100a(22) =137a(23) =189a(24) =250a(25) =344a(26) =450a(27) =597a(28) =778a(29) =1019