26658145587
domain: N
Appears in sequences
- Least positive integer k such that the fractional part of k*sqrt(5) has its n initial partial quotients all equal to 1.at n=24A004794
- a(n) = floor((Fibonacci(2*n+1)+1)/2).at n=26A087953
- Row sums of triangle A099510, so that a(n) = Sum_{k=0..n} coefficient of z^k in (1 + 2*z + z^2)^(n-[k/2]), where [k/2] is the integer floor of k/2.at n=25A099511
- a(n) = (Fibonacci(3*n-1) + 1)/2 for n >= 1.at n=17A292278
- Numbers k such that the k-th centered 40-gonal numbers (A195317) is a square.at n=17A351354