Number of integer compositions of n whose leaders of weakly increasing runs are themselves weakly increasing.
A374635
Number of integer compositions of n whose leaders of weakly increasing runs are themselves weakly increasing.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =10a(6) =20a(7) =36a(8) =69a(9) =130a(10) =247a(11) =467a(12) =890a(13) =1689a(14) =3213a(15) =6110a(16) =11627a(17) =22121a(18) =42101a(19) =80124a(20) =152512a(21) =290300a(22) =552609a(23) =1051953a(24) =2002583a(25) =3812326a(26) =7257679a(27) =13816867a(28) =26304254a(29) =50077792
External references
- oeis: A374635