38149

Properties

Appears in sequences

• E.g.f. log(1 + x*exp(-x)).at n=7A009444
• a(n) = n^3 - n^2 + 1.at n=34A100104
• Primes from merging of 5 successive digits in decimal expansion of the Golden Ratio, (1+sqrt(5))/2.at n=16A103809
• Primes p such that the multiplicative order of 2 modulo p is (p-1)/11.at n=16A152311
• Primes of the form k^3-k^2+1, k>0.at n=13A162292
• Prime factors in a divisibility sequence of the Lucas sequence v(P=3,Q=5) of the second kind.at n=20A164816
• Number of zero-sum -n..n arrays of 4 elements with adjacent element differences also in -n..n.at n=26A202254
• Number of third differences of arrays of length 5 of numbers in 0..n.at n=32A228261
• Triangular array read by rows: T(n,k) is the number of functional digraphs on {1,2,...,n} such that every element is mapped to a recurrent element and there are exactly k cycles, n>=1, 1<=k<=n.at n=21A228534
• Number of preferential arrangements of n labeled elements when at least k=4 elements per rank are required.at n=12A232475
• Primes p such that p^4-p^3+1 and p^4-p^3-1 are also primes.at n=15A238136
• Number of length 6+4 0..n arrays with every five consecutive terms having four times some element equal to the sum of the remaining four.at n=7A249662
• Expansion of e.g.f.: (1+x) / (exp(-x) - x).at n=6A305990
• Primes that are sums of a sequence of consecutive terms of A006094.at n=17A340537
• Lesser of 2 successive primes (k, k+4) sandwiching 3 consecutive nonsquarefree numbers.at n=25A366352
• Prime numbersat n=4026