37141

Appears in sequences

• Expansion of sum ( q^n / product( 1-q^k, k=1..4*n), n=0..inf ).at n=34A035296
• Triangle T(n, k) read by rows; given by [1, 1, 1, 1, 1, 1, 1, 1, ...] DELTA [1, 0, 2, 0, 2, 0, 3, 0, 2, 0, 4, 0, 2, 0, ...] (A000005 interspersed with 0's) where DELTA is Deléham's operator defined in A084938.at n=39A085853
• Numbers n such that 6*p(n)-1 and 6*p(n)+1 are twin primes and 6*p(n+1)-1 and 6*p(n+1)+1 are also twin primes with p(n) = n-th prime.at n=38A126655
• a(n) = 625n^2 - 364n + 53.at n=7A157621
• The numbers n in s=n^2 + (n+1)^2 that satisfy the requirement for two consecutive squares c,d with c<d with d-c being the sum of two consecutive squares that c<s<d will give s-c and d-s both being squares.at n=27A192743
• Least number x such that x^n has n digits equal to k. Case k = 1.at n=32A285448
• Numbers k such that the equation x^2 - k*y^4 = -1 has a solution for which |y| > 2.at n=22A356488
• Expansion of (1/x) * Series_Reversion( x * (1+x) / (1+x+x^3)^2 ).at n=12A372375