A050831 Numbers n such that 159*2^n-1 is prime.

1, 4, 5, 11, 24, 25, 41, 67, 185, 215, 235, 277, 445, 465, 647, 844, 1420, 1505, 2385, 6451, 7475, 9549, 10800, 11585, 16079, 47795, 51839, 89285, 106481, 186331, 201429, 293235, 338477, 442189, 482581, 611020