Number of compositions of n, where the difference between the number of odd parts and the number of even parts is 4.
A242502
Number of compositions of n, where the difference between the number of odd parts and the number of even parts is 4.
Terms
- a(0) =1a(1) =0a(2) =4a(3) =6a(4) =10a(5) =36a(6) =48a(7) =126a(8) =259a(9) =456a(10) =1064a(11) =1956a(12) =3939a(13) =8112a(14) =15300a(15) =31174a(16) =60951a(17) =118580a(18) =236456a(19) =458172a(20) =900185a(21) =1765556a(22) =3431792a(23) =6728410a(24) =13107393a(25) =25538448a(26) =49856392a(27) =96966572a(28) =188914574a(29) =367741688
External references
- oeis: A242502