53357
domain: N
Appears in sequences
- a(n) = (6*n+1)*(6*n+5).at n=38A001513
- Product of the n-th cousin prime pair.at n=15A143206
- a(n) = (8*n+5)*(8*n+9).at n=28A146302
- Numbers k such that exactly one d, 2 <= d <= k/2, exists which divides binomial(k-d-1, d-1) and is not coprime to k.at n=24A178071
- Monotonic ordering of set S generated by these rules: if x and y are in S and x^2-y^2>0 then x^2-y^2 is in S, and 2 and 3 are in S.at n=30A192648
- Increasing a(n)is the smallest number of the form p^a*q^b, where a,b are positive integers and p < q are odd primes such that max( p^a, q^b)/min( p^a, q^b) <= 1 + 2/prime(n).at n=27A229108
- Sequence of pairwise relatively prime numbers of class P_3 (see comment).at n=25A275246
- Number of parts in all partitions of n with largest multiplicity eight.at n=35A320378
- Number of connected bipartite graphs with n edges.at n=13A382348