Number of compositions of n where the difference between largest and smallest parts equals 3 and adjacent parts are unequal.
A214272
Number of compositions of n where the difference between largest and smallest parts equals 3 and adjacent parts are unequal.
Terms
- a(0) =0a(1) =2a(2) =1a(3) =8a(4) =12a(5) =18a(6) =46a(7) =69a(8) =111a(9) =208a(10) =340a(11) =539a(12) =910a(13) =1497a(14) =2403a(15) =3924a(16) =6331a(17) =10230a(18) =16531a(19) =26591a(20) =42652a(21) =68595a(22) =110195a(23) =176458a(24) =282895a(25) =452990a(26) =725036a(27) =1160067a(28) =1855376a(29) =2966265
External references
- oeis: A214272