Number of integer partitions of n having more than one permutation with all equal run-lengths.

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =2a(6) =4a(7) =5a(8) =9a(9) =14a(10) =20a(11) =28a(12) =43a(13) =55a(14) =77a(15) =107a(16) =141a(17) =183a(18) =244a(19) =312a(20) =411a(21) =521a(22) =664a(23) =837a(24) =1069a(25) =1328a(26) =1667a(27) =2069a(28) =2578a(29) =3166