221682772224
domain: N
Appears in sequences
- Perfect powers k such that 2*k + 1 is a perfect power; the value of y^b in the solution of the Diophantine equation x^a - 2y^b = 1.at n=8A075114
- Squares of Pell numbers.at n=16A079291
- Squares k such that 2*k+1 is also a square.at n=8A084703
- A204512(n)^2 = floor[A055872(n)/8]: Squares such that appending some digit in base 8 yields another square.at n=18A204504
- List of pairs of consecutive integers such that one of them is a square and their sum is also a square.at n=30A331261