48509

Appears in sequences

• Numbers k such that 255*2^k+1 is prime.at n=44A032504
• Numbers m such that m and m+2 are both brilliant numbers, where brilliant numbers are semiprimes whose prime factors have an equal number of decimal digits, or whose prime factors are equal.at n=29A083284
• Integers n such that for all i > n the largest prime factor of product(i+k, {k,0,8}) exceeds the largest prime factor of product(n+k, {k,0,8}).at n=23A200566
• Integers n such that for all i > n the largest prime factor of product(i+k, {k,0,12}) exceeds the largest prime factor of product(n+k, {k,0,12}).at n=23A200570
• Expansion of (1/x) * Series_Reversion( x * (1 - x - x^2 / (1 - x)^3) ).at n=8A389403