23999
domain: N
Appears in sequences
- Composite numbers n such that k! == 1 (mod n) for some k > 2.at n=24A049048
- Numbers k such that x^k + x^5 + 1 is irreducible over GF(2).at n=30A057474
- Odd numbers n for which 17 is the smallest i (>= 1) with Jacobi symbol J(i,n) getting either a value 0 or -1.at n=31A112077
- a(n) = 60*n^2 - 1.at n=19A158670
- Number of nondecreasing sequences of n 1..6 integers with every element dividing the sequence sum.at n=36A212534
- Number of partitions of n having (sum of odd parts) < (sum of even parts).at n=42A239259
- Number of partitions of n having (sum of odd parts) <= (sum of even parts).at n=42A239260
- Molien series for invariants of finite Coxeter group A_9.at n=62A266778
- Numbers n such that x^(n-5)*(x+1)^5+1 is irreducible in F2[x].at n=23A267918
- Row lengths of the irregular triangles A324038 and A324246.at n=21A324039
- Odd composite integers m such that A004187(m-J(m,45)) == 0 (mod m) and gcd(m,45)=1, where J(m,45) is the Jacobi symbol.at n=42A340099
- a(n) = 3*n^3 - 1.at n=20A345701