323284
domain: N
Appears in sequences
- a(n) = ((4+sqrt(5))*(2+sqrt(5))^n + (4-sqrt(5))*(2-sqrt(5))^n)/2.at n=8A163070
- Values of x such that x^2 = 5*y^2 + 11, where x and y are positive integers.at n=8A281064
- Numbers whose first occurrence in Stern's diatomic series (A002487) is later than that of one of their proper multiples.at n=10A358925