82811

Properties

Appears in sequences

• Let A(n) = floor((3/2)^n), B(n)=3^n-2^n*A(n); then a(n)=2^n-A(n)-B(n)-2.at n=19A174420
• Primes of the form 10n^2 + 1.at n=26A201709
• Expansion of g.f. 1/ (1-x^1*(1-x^(m+1))/ (1-x^2*(1-x^(m+2))/ (1- ... ))) for m=6.at n=23A228646
• a(n) is the smallest odd prime that divides (-n) + the sum of all smaller primes, or 0 if no such prime exists.at n=4A274995
• Lesser of twin primes for which phi(p-1) < phi(p+1).at n=19A286715
• Number of maximal subsets of {1..n} such that it is possible to choose a different binary index of each element.at n=28A370640
• Primes having only {1, 2, 8} as digits.at n=35A385775
• Prime numbersat n=8094