Number of set partitions of [n] such that for each block all absolute differences between consecutive elements are <= five.
A287277
Number of set partitions of [n] such that for each block all absolute differences between consecutive elements are <= five.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =15a(5) =52a(6) =203a(7) =825a(8) =3442a(9) =14589a(10) =62361a(11) =267663a(12) =1151563a(13) =4960725a(14) =21384434a(15) =92216247a(16) =397743421a(17) =1715713298a(18) =7401353547a(19) =31929410019a(20) =137745628418a(21) =594249218505
External references
- oeis: A287277