53677

Appears in sequences

• Take n points in general position in the plane; draw all the (infinite) straight lines joining them; sequence gives number of connected regions formed.at n=27A055503
• Monotonic ordering of set S generated by these rules: if x and y are in S then x^2+y^2+xy is in S, and 1 is in S.at n=18A192535
• Odd numbers which are factored to the same set of primes in Z as to the irreducible polynomials in GF(2)[X]; odd terms of A235036.at n=39A235039
• a(n) = (n + 1)*(6*n^2 + 15*n + 4)/2.at n=25A269232
• Numbers k such that A339549(k) = A339549(k+1).at n=29A339550
• Convolution of A007528 and A002476.at n=16A354543
• Integers k such that 511*2^k - 1 is prime.at n=40A387925