A067437 Number of distinct prime factors in binomial(2*n,n)+1.

1, 1, 2, 1, 2, 2, 1, 2, 3, 2, 2, 1, 2, 3, 3, 4, 2, 2, 1, 2, 4, 1, 3, 2, 4, 4, 3, 4, 3, 2, 3, 2, 2, 2, 5, 4, 3, 1, 4, 3, 2, 3, 2, 4, 2, 1, 3, 3, 4, 2, 6, 3, 7, 5, 4, 5, 3, 3, 2, 3, 5, 1, 5, 2, 3, 4, 3, 1, 6, 6, 3, 1, 3, 2, 5, 2, 4, 4, 4, 2, 6, 2, 2, 1, 3, 4, 3, 2, 4, 3