140039

Appears in sequences

• Least inverse of A015910: smallest integer k > 0 such that 2^k mod k = n, or 0 if no such k exists.at n=31A036236
• Least positive number k such that 2^k mod k = 2n+1, or 0 if no such k exists.at n=15A124977
• Number of length n 0..4 arrays with new values introduced in order from both ends.at n=12A245159
• Number of n X 3 0..1 arrays with every element equal to 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=8A302219