Number of compositions of n, where the difference between the number of odd parts and the number of even parts is 3.
A242501
Number of compositions of n, where the difference between the number of odd parts and the number of even parts is 3.
Terms
- a(0) =1a(1) =0a(2) =3a(3) =5a(4) =6a(5) =25a(6) =31a(7) =75a(8) =162a(9) =259a(10) =609a(11) =1106a(12) =2122a(13) =4410a(14) =8076a(15) =16197a(16) =31527a(17) =59961a(18) =118844a(19) =227700a(20) =441507a(21) =860860a(22) =1654731a(23) =3218501a(24) =6226818a(25) =12027405a(26) =23337471a(27) =45082050a(28) =87258876a(29) =168935018
External references
- oeis: A242501