35847

Appears in sequences

• Numbers k such that 7*10^k + 6*R_k - 3 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=18A103064
• Number of partitions p of n such that 2*(number of even numbers in p) >= (number of odd numbers in p).at n=41A241654
• Number of nX7 0..1 arrays with every element unequal to 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=12A317740