33606

Appears in sequences

• Numbers n such that 261*2^n-1 is prime.at n=35A050889
• Numbers k such that there are 10 digits in k^2 and for each factor f of 10 (1, 2, 5) the sum of digit groupings of size f is a square.at n=11A153748
• E.g.f. satisfies: A(x) = x/(1 - sinh(A(x))).at n=5A214223
• Numbers n such that A182134(n) = 3, i.e., there exist only three primes p with prime(n) < p < prime(n)^(1 + 1/n).at n=49A246781
• G.f.: Sum_{k>=0} 2^k * x^(k^2) / Product_{j=1..k} (1 - x^j).at n=52A376948
• Numbers of uniquely embeddable trees on n vertices.at n=24A378672