Total number of cycles in all permutations of [n] having cycles of the form (c1, c2, ..., c_m) where c1 = min_{i>=1} c_i and c_j = min_{i>=j} c_i or c_j = max_{i>=j} c_i.
A345341
Total number of cycles in all permutations of [n] having cycles of the form (c1, c2, ..., c_m) where c1 = min_{i>=1} c_i and c_j = min_{i>=j} c_i or c_j = max_{i>=j} c_i.
Terms
- a(0) =0a(1) =1a(2) =3a(3) =11a(4) =48a(5) =238a(6) =1318a(7) =8054a(8) =53728a(9) =387836a(10) =3007940a(11) =24917668a(12) =219375104a(13) =2043792680a(14) =20074003368a(15) =207186660712
External references
- oeis: A345341