A152850 First differences of A152737.
1, 2, 2, 4, 4, 5, 5, 5, 6, 7, 7, 7, 8, 8, 8, 9, 9, 10, 10, 10, 10, 11, 11, 12, 11, 12, 13, 12, 13, 13, 13, 14, 14, 14, 15, 14, 15, 15, 16, 16, 15, 17, 16, 17, 17, 17, 17, 18, 17, 19, 18, 18, 19, 19, 19, 19
Offset: 0