187124

Appears in sequences

• a(1) = 2; for n>1, a(n) = smallest integer > a(n-1) such that a(n) + a(i) + 1 is prime for all 1 <= i <= n-1.at n=9A093483
• n-th derivative of ((x^x)^x)^(x^x) at x=1.at n=7A215707
• Seventh derivative of f_n at x=1, where f_n is the n-th of all functions that are representable as x^x^...^x with m>=1 x's and parentheses inserted in all possible ways.at n=9A215837