27717

Appears in sequences

• Positions in A181391 where the terms listed in A171863 appear.at n=23A171864
• a(n) is the smallest m for which 6^m contains (at least) n consecutive identical digits.at n=8A215729
• a(n) is the smallest m for which 6^m contains (at least) n consecutive identical digits.at n=9A215729
• a(n) is the least value of k such that the decimal expansion of n^k contains nine consecutive identical digits.at n=4A217164
• Start with a(1) = 1, a(2) = 3, then a(n)*2^k = a(n+1) + a(n+2), with 2^k the smallest power of 2 (k>0) such that all terms a(n) are positive integers.at n=46A233526
• Integers m such that sigma(m) + sigma(m+1) + sigma(m+2) - sigma(m+3) <= 0, where sigma is the sum of divisors.at n=4A348698
• Numbers k such that A003415(k) == A276085(k) (mod 2310), where A003415 is the arithmetic derivative and A276085 is the primorial base log-function.at n=26A391864
• Numbers k such that A003415(k) == A276085(k) (mod 2310) and A003415(k+1) == A276085(k+1) (mod 2310), where A003415 is the arithmetic derivative and A276085 is the primorial base log-function.at n=1A391947