Number of entries in the third blocks of all set partitions of [n] when blocks are ordered by decreasing lengths.
A333060
Number of entries in the third blocks of all set partitions of [n] when blocks are ordered by decreasing lengths.
Terms
- a(0) =1a(1) =7a(2) =36a(3) =186a(4) =1023a(5) =5867a(6) =34744a(7) =211888a(8) =1343046a(9) =8896185a(10) =61801182a(11) =449917898a(12) =3425580850a(13) =27183592435a(14) =224196765392
External references
- oeis: A333060