6718463

Appears in sequences

• Numbers of the form i*6^j-1 (i=1..5, j >= 0).at n=43A181288
• a(n) = 4*6^n-1.at n=8A198797
• Numbers n such that for any positive integers (a, b), if a * b = n then a + b is a square.at n=5A235334
• Records in A166133.at n=24A256403
• Consider numbers n such that A166133(n) sets a new record and also satisfies A166133(n)=A166133(n-1)^2-1; sequence gives values of A166133(n).at n=9A256423
• Numbers k such that k and k+1 are both nonprime-powers whose all distinct prime divisors are consecutive primes (A066312).at n=25A346910
• Numbers m such that the sum of its distinct prime factors and the sum of its nonprime divisors are both squares.at n=8A380953