Exponential Riordan array, defining orthogonal polynomials related to permutations without double falls.
A182822
Exponential Riordan array, defining orthogonal polynomials related to permutations without double falls.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =1a(6) =5a(7) =12a(8) =6a(9) =1a(10) =17a(11) =53a(12) =39a(13) =10a(14) =1a(15) =70a(16) =279a(17) =260a(18) =95a(19) =15a(20) =1a(21) =349a(22) =1668a(23) =1914a(24) =880a(25) =195a(26) =21a(27) =1a(28) =2017a(29) =11341
External references
- oeis: A182822