138004

Appears in sequences

• Triangle read by rows: T(n,k) is the number of weighted lattice paths B(n) having a total of k uhd and uHd strings.at n=46A247294
• Least number k such that the arithmetic derivatives of the composite numbers k-n and k+n are equal.at n=0A296341
• a(n) = [x^n] S(x)^(2*n), where S(x) = (1 - x - sqrt(1 - 6*x + x^2))/(2*x) is the o.g.f. of the large Schröder numbers A006318.at n=5A333481
• Prime gaps: differences between consecutive primes, starting at 10^100000.at n=32A365612