Triangle read by rows, arising in enumeration of permutations by cyclic peaks, cycles and fixed points.
A216963
Triangle read by rows, arising in enumeration of permutations by cyclic peaks, cycles and fixed points.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =1a(5) =4a(6) =5a(7) =11a(8) =28a(9) =5a(10) =41a(11) =153a(12) =71a(13) =162a(14) =872a(15) =759a(16) =61a(17) =715a(18) =5191a(19) =7262a(20) =1665a(21) =3425a(22) =32398a(23) =66510a(24) =29778a(25) =1385a(26) =17722a(27) =211937a(28) =601080a(29) =443231
External references
- oeis: A216963