43999
domain: N
Appears in sequences
- Numbers k such that k^2 + 1 is divisible by precisely five distinct primes where the sum of the largest and the smallest is equal to the sum of the other three.at n=7A192771
- Numbers k such that the sum of the largest and the smallest prime divisor of k^2 + 1 equals the sum of the other distinct prime divisors.at n=13A199924
- Number of n X 4 0..1 arrays with successive rows and columns fitting to straight lines with nondecreasing slope, with a single point array taken as having zero slope.at n=5A223313
- Number of nX6 0..1 arrays with successive rows and columns fitting to straight lines with nondecreasing slope, with a single point array taken as having zero slope.at n=3A223315
- T(n,k)=Number of nXk 0..1 arrays with successive rows and columns fitting to straight lines with nondecreasing slope, with a single point array taken as having zero slope.at n=39A223317
- T(n,k)=Number of nXk 0..1 arrays with successive rows and columns fitting to straight lines with nondecreasing slope, with a single point array taken as having zero slope.at n=41A223317
- Composites whose prime factorization in base 8 is an anagram of the number in base 8.at n=18A260052
- Numbers k such that the sums (with multiplicity) of prime factors of k and k+1 are both squares.at n=40A359445