1390625
domain: N
Appears in sequences
- a(n) = ((5+sqrt(5))/2)^n + ((5-sqrt(5))/2)^n.at n=11A020876
- Numbers that are the sum of 2 nonzero squares in exactly 7 ways.at n=24A025290
- Numbers that are the sum of 2 distinct nonzero squares in exactly 7 ways.at n=28A025308
- Binomial transform of Fibonacci(2n-1) (A001519).at n=12A093129
- Numbers n such that the decimal concatenations 1n and 2n are both squares.at n=2A272672
- Hypotenuses for which there exist exactly 19 distinct integer triangles.at n=19A290505