1347840

Appears in sequences

• a(n) = ((2*n-1)!!/sqrt(3))*(integral_{x=0..sqrt(3/4)} 1/(1-x^2)^(n+1/2) dx).at n=5A089252
• Numbers n such that n=phi(phi(n)+sigma(n)) and n is not of the form 2*p where p is a Sophie Germain odd prime.at n=19A097652
• The sum (in nondecreasing order) of the two numbers in an amicable pair.at n=34A259953
• Table read by rows: T(n,k) is the number of stable marriage instances with n men and n+1 women in which some "rejecting" woman receives exactly k proposals.at n=7A309933