41220

Appears in sequences

• Replace n with the concatenation of its anti-divisors.at n=27A130846
• Number of (n+1)X(2+1) 0..3 arrays with the maximum minus the minimum of every 2X2 subblock equal.at n=1A237334
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum minus the minimum of every 2X2 subblock equal.at n=4A237340
• a(n) is the starting position of the second occurrence of a string of the initial n hexadecimal digits of Pi in the hexadecimal expansion of Pi.at n=3A385936