60042

Appears in sequences

• Fibonacci sequence beginning 2, 22.at n=18A022373
• Numbers n such that n*((2^61-1)^4) - 1 and n*((2^61-1)^4) + 1 are twin primes.at n=1A099231
• a(n) = Sum_{i+j+k=n, i,j,k >= 1} tau(i)*tau(j)*tau(k), where tau() = A000005().at n=52A191829
• Smallest sets of 7 consecutive abundant numbers in arithmetic progression. The initial abundant number is listed.at n=27A228964
• Number of (n+2)X(1+2) 0..3 arrays with every consecutive three elements in every row and column having exactly two distinct values, and in every diagonal and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=9A252688
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every consecutive three elements in every row and column having exactly two distinct values, and in every diagonal and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=45A252695
• Expansion of 1 / (1 + Sum_{k>=1} lambda(k)*x^k), where lambda() is the Liouville function (A008836).at n=28A356907