2302911

Appears in sequences

• Number of positive integers <= 2^n of form 4 x^2 + 9 y^2.at n=25A054173
• Reduced denominators of the central moments of the distribution of random line segments picked on a unit line segment.at n=9A103308
• a(n) = 13*3^n.at n=11A258597
• a(n) = (n+1) * 3^(n-1).at n=11A288834
• Numbers k such that both k and k+1 are exceptional (A072066).at n=6A331625