55647
domain: N
Appears in sequences
- Numbers k such that k | 4^k + 3^k + 2^k.at n=17A057238
- Lesser of two consecutive numbers each divisible by a fifth power.at n=15A068783
- Numbers k such that k^2+4, k^2+8, and k^2+10 are prime.at n=25A157929
- Number of length n+5 0..2 arrays with every six consecutive terms having the maximum of some two terms equal to the minimum of the remaining four terms.at n=6A250075
- T(n,k)=Number of length n+5 0..k arrays with every six consecutive terms having the maximum of some two terms equal to the minimum of the remaining four terms.at n=34A250081
- Number of length 7+5 0..n arrays with every six consecutive terms having the maximum of some two terms equal to the minimum of the remaining four terms.at n=1A250088
- Numbers such that the decimal digits of sigma(n) are a permutation of those of sigma(n)-n.at n=19A277114
- Number of subsets of {1,2,...,n} such that no two elements differ by 1, 4, or 5.at n=31A375981