717469

Appears in sequences

• Hypotenuses of primitive Pythagorean triples in A195544 and A195545.at n=6A195546
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n), where a(0) = 1, a(1) = 4, b(0) = 2, b(1) = 3, b(2) = 5, and (a(n)) and (b(n)) are increasing complementary sequences.at n=24A295950