98367

Appears in sequences

• Number of achiral triangular n-ominoes (n-iamonds) (holes are allowed).at n=25A030223
• Number of (n+2) X (2+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000000 00000001 or 00010001.at n=9A260201
• Total sum T(n,k) of the sizes of all blocks with maximal element k in all set partitions of {1,2,...,n}; triangle T(n,k), n>=1, 1<=k<=n, read by rows.at n=50A270701
• Total sum T(n,k) of the sizes of all blocks with minimal element k in all set partitions of {1,2,...,n}; triangle T(n,k), n>=1, 1<=k<=n, read by rows.at n=49A270702
• Total sum of the sizes of all blocks with maximal element 6 in all set partitions of {1,2,...,n}.at n=4A270760
• Total sum of the sizes of all blocks with minimal element 5 in all set partitions of {1,2,...,n}.at n=5A270768