Number of partitions of [n] with an equal number of even and odd block sizes.
A361804
Number of partitions of [n] with an equal number of even and odd block sizes.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =3a(4) =0a(5) =15a(6) =45a(7) =63a(8) =1260a(9) =1515a(10) =25515a(11) =104973a(12) =510345a(13) =5679765a(14) =17252235a(15) =263214318a(16) =1207222380a(17) =11863296915a(18) =101718989235a(19) =630468648873
External references
- oeis: A361804