199477

Appears in sequences

• Nonnegative numbers n such that n^42 + 42 is prime.at n=17A104111
• Number of ways to select a subset s containing n from {1,...,n} and then partition s into blocks of equal size.at n=12A262321
• Number of n X 3 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 neighboring 1s.at n=14A296322