Number of pairs (y, v) of integer partitions of n where the length of v equals the number of distinct parts in y.

A355385

Number of pairs (y, v) of integer partitions of n where the length of v equals the number of distinct parts in y.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =7a(5) =12a(6) =25a(7) =43a(8) =81a(9) =141a(10) =243a(11) =409a(12) =699a(13) =1132a(14) =1844a(15) =2995a(16) =4744a(17) =7408a(18) =11655a(19) =17839a(20) =27509a(21) =41546a(22) =62879a(23) =93537a(24) =139974a(25) =205547a(26) =302714a(27) =440097a(28) =640968a(29) =921774

External references