102356

Appears in sequences

• Number of abstract simplicial 2-complexes on {1,2,3,...,n+4} which triangulate a Moebius band in such a way that all vertices lie on the boundary and are traversed in the order 1,2,3,... as one goes around the boundary.at n=6A007817
• a(n) = A045820(n)/2.at n=29A045822
• Records in A086068.at n=18A086069
• Numbers with exactly six distinct base-10 digits.at n=6A220076
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with the (lower) medians of each row unequal to its neighbors and each column equal to its neighbors.at n=28A238026
• Number of (1+2) X (n+2) 0..1 arrays with the (lower) medians of each row unequal to its neighbors and each column equal to its neighbors.at n=7A238027