41998
domain: N
Appears in sequences
- Composite n coprime to 5 such that Fibonacci(n) == Legendre(n,5) (mod n).at n=13A049062
- Composite n such that Fibonacci(n) == Legendre(n,5) == -1 (mod n).at n=5A094063
- Floor (e^(n / log(n))).at n=37A096181
- Catalan transform of the Pell sequence.at n=9A143464
- A triangular sequence:t(n,m)=A033306(n,m)-A033306(n,0)+1.at n=47A174640
- A triangular sequence:t(n,m)=A033306(n,m)-A033306(n,0)+1.at n=52A174640
- a(n) = n*(n + 1)*(n + 2)*(3*n + 17)/24.at n=22A241765
- T(n,k) = 1/k! * Sum_{i=0..k} (-1)^(k-i) *C(k,i) * A258222(n,i); triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=17A258223
- Number of (n+2)X(2+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001011.at n=10A261549
- The numbers k for which Lucas(k) are Niven numbers.at n=22A337449