Irregular triangle T(n,k) read by rows: T(n,k) is the number of compositions of n with k descents, n>=0, 0<=k<=floor(n/3).
A238344
Irregular triangle T(n,k) read by rows: T(n,k) is the number of compositions of n with k descents, n>=0, 0<=k<=floor(n/3).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =3a(4) =1a(5) =5a(6) =3a(7) =7a(8) =9a(9) =11a(10) =19a(11) =2a(12) =15a(13) =41a(14) =8a(15) =22a(16) =77a(17) =29a(18) =30a(19) =142a(20) =81a(21) =3a(22) =42a(23) =247a(24) =205a(25) =18a(26) =56a(27) =421a(28) =469a(29) =78
External references
- oeis: A238344