28798
domain: N
Appears in sequences
- Smallest multiple of n whose digits sum to n.at n=34A002998
- Smallest proper multiple of n with digit sum n.at n=33A069035
- Smallest multiple of n with two or more digits, none of them zeros, whose digit sum equals n, or 0 if no such multiple exists.at n=33A077754
- a(n) = n^3 - n^2 - n - 1.at n=31A083074
- a(n) = sigma_3(n) - sigma_2(n) - sigma_1(n).at n=30A092350
- a(n) is the smallest number which is divisible by n, is not equal to n and its digital sum is also divisible by n.at n=33A163502
- a(n) = A220371(n)/(4*A220371(n-1)).at n=29A193365
- The total number of components in (A011800) of all labeled forests on n nodes whose components are all paths.at n=7A201720
- Number of (w,x,y,z) with all terms in {1,...,n} and w<=2x and y>=3z.at n=22A212515
- Number of partitions p of n such that (maximal multiplicity of the parts of p) <= (number of distinct parts of p).at n=42A240306
- Number of 5-cycles in the n-polygon diagonal intersection graph.at n=31A300553
- Number of (undirected) Hamiltonian paths in the n-dipyramidal graph.at n=14A307939
- Number of ordered pairs of integer partitions of n where no part of the first is greater than any part of the second.at n=24A322439
- Number of unordered pairs (p,q) of partitions of n such that the set of parts in q is equal to the set of parts in p.at n=28A369696