667590
domain: N
Appears in sequences
- 1 / min{1/n - 1/a - 1/b > 0}, where a and b are integers.at n=32A045470
- a(n) = n^2 * (n^2 - 1)/2.at n=33A083374
- Triangle T(n, k) = A010048(n, k)*A010048(n, k-1)/Fibonacci(n), read by rows.at n=47A172373
- Triangle T(n, k) = A010048(n, k)*A010048(n, k-1)/Fibonacci(n), read by rows.at n=52A172373
- a(n) = smaller member of n-th pair of distinct, positive, triangular numbers whose sum and difference are also triangular numbers.at n=17A185129
- Row sums of the triangle A045975.at n=33A204558
- a(n) = (Fibonacci(5n)/Fibonacci(n) - 5)/50.at n=8A214982