61383
domain: N
Appears in sequences
- a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Lucas numbers), t = A000201 (lower Wythoff sequence).at n=27A025094
- a(n) is smallest number m such that (m = product of n distinct primes) and all divisors of m are lucky numbers.at n=3A057600
- a(n) is smallest number m such that (m = product of n primes, not necessarily distinct ones) and all divisors of m are lucky numbers.at n=3A087673
- Indecomposable collections of multisets with a total of n objects having entries {1,2,...,k} for some k<=n or INVERTi transform of A255906.at n=8A273396
- Numbers that can be represented in more than one way as p^2+p*q+q^2 with p and q primes, p<=q.at n=37A349987