11108452651921

This number is a prime.

The Bernoulli triangle is just like Pascal's triangle except you start with powers of two (2^0, 2^1, ...) down the right-hand side. Its second column (2, 3, 4, ...) contains all of the primes, yet the smallest prime in any even-numbered column, other than column two, is 11108452651921 (14th column, 63rd row). [Edwards]