35872267

Properties

Appears in sequences

• a(0) = 1; a(n) = (5*3^(n-1) - 1)/2 for n > 0.at n=16A060816
• Smallest prime p such that 2*p+1 has n prime factors (with multiplicity).at n=15A072060
• a(0)=3, a(n) = 3*a(n-1) + 2*(-1)^n.at n=15A096019
• Expansion of (1+2x-x^3+x^4)/(1-4x^2+3x^4).at n=31A181655
• Expansion of (1+2*x+2*x^2-x^3)/((1-x)*(1+x)*(1-3x^2)).at n=31A220946
• a(n) is the least prime of the form (3^j*5^k - 1)/2, j > 0, k > 0, j + k = n. a(n) = 0 if no such prime exists.at n=14A337423
• Numbers that may be built from fewer ones using floor(j/k) in addition to +, -, and *.at n=29A346742
• Least number m for which there exists some positive k < m where the sum of the integers from k + 1 to m inclusive is an n-th power > 1.at n=30A372782
• Prime numbersat n=2196935