Number of compositions of n where the difference between largest and smallest parts equals 9 and adjacent parts are unequal.
A214278
Number of compositions of n where the difference between largest and smallest parts equals 9 and adjacent parts are unequal.
Terms
- a(0) =0a(1) =2a(2) =1a(3) =8a(4) =12a(5) =23a(6) =56a(7) =100a(8) =196a(9) =380a(10) =734a(11) =1360a(12) =2583a(13) =4831a(14) =8933a(15) =16629a(16) =30627a(17) =56359a(18) =103401a(19) =189241a(20) =345386a(21) =629284a(22) =1144379a(23) =2076985a(24) =3764633a(25) =6812624a(26) =12312124a(27) =22223544a(28) =40067505a(29) =72159773
External references
- oeis: A214278