43355

Appears in sequences

• Negative of numerator of y-coordinate of (2n+1)*P where P is the generator for rational points on the curve y^2 + y = x^3 - x.at n=6A028934
• Negative of numerator of y coordinate of n*P where P is the generator [0,0] for rational points on curve y^2+y = x^3-x.at n=12A028942
• Denominator of Product_{i=1..n} (p_i+1)/(p_i-1). Numerators are in A078559.at n=17A078560
• Derived from the centered polygonal numbers: start with the first triangular number, then the sum of the first square number and the second triangular number, then the sum of first pentagonal number, the second square number and the third triangular number, and so on and so on...at n=29A141534
• G.f.: A(x) = exp( Sum_{n>=1} sigma(n)*A000204(n)*x^n/n ).at n=13A156234
• Numbers n such that A083722(n) > 1 and A083722(n) occurs later in A083722.at n=26A293893
• Integers i such that the equation A088387(i) = p has N > 1 solutions in the interval prevprime(i)..nextprime(i).at n=26A308617
• Integers k such that the equation A034699(k)=x has more than one solution in the range [prevprime(k), nextprime(k)].at n=2A308752
• Number of separable partitions of n in which the number of distinct (repeatable) parts <= 6.at n=42A325715