Number of compositions (ordered partitions) of n whereby at most 1 increase is allowed and this increase must be by 1.
A090752
Number of compositions (ordered partitions) of n whereby at most 1 increase is allowed and this increase must be by 1.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =7a(4) =13a(5) =21a(6) =36a(7) =56a(8) =89a(9) =134a(10) =204a(11) =296a(12) =435a(13) =618a(14) =879a(15) =1223a(16) =1702a(17) =2323a(18) =3171a(19) =4263a(20) =5720a(21) =7589a(22) =10043a(23) =13158a(24) =17202a(25) =22305a(26) =28839a(27) =37038a(28) =47437a(29) =60391
External references
- oeis: A090752