180642

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 50.at n=16A031728
• a(n) = binomial(n+4,4)*(4*n+5)/5.at n=20A034263
• Number of n-node planar graphs with minimum degree at least 5.at n=23A049373
• a(n) = 289*n^2 + 17.at n=25A158585
• Products of 6 distinct primes that are sandwiched between semiprime numbers.at n=18A378627