129591

Appears in sequences

• a(n) = floor(e^(n/e)).at n=32A061481
• Concatenation of first 3 digits and last 3 digits of n-th Mersenne prime A000668(n).at n=32A138866
• Reversion of x-x^2-x^3-2*x^4.at n=9A191242
• a(n) = n*(1 + n)*(3 - 4*n + 4*n^2)/6.at n=20A213840