Total sum of the sizes of all blocks with maximal element 4 in all set partitions of {1,2,...,n}.
A270758
Total sum of the sizes of all blocks with maximal element 4 in all set partitions of {1,2,...,n}.
Terms
- a(0) =30a(1) =67a(2) =195a(3) =670a(4) =2623a(5) =11437a(6) =54692a(7) =283625a(8) =1581303a(9) =9413380a(10) =59497049a(11) =397402597a(12) =2794008798a(13) =20606565063a(14) =158955946879
External references
- oeis: A270758