970224

Appears in sequences

• Numbers k such that (k+1)*(2*k+1) is a perfect square.at n=4A078522
• Numbers occurring in three Pythagorean triples of the form: odd: a, (a^2-1)/2, (a^2+1)/2 or even: a, a^2/4-1, a^2/4+1.at n=8A111766
• Solutions y to the negative Pell equation y^2 = 72*x^2 - 83232 with x,y >= 0.at n=15A281240
• List of pairs of consecutive integers such that one of them is a square and their sum is also a square.at n=16A331261
• Positions of records in A375970.at n=17A375971