( 4096 birthdays, 2147483563 days in year)
Table of Expected vs. Observed counts:
<=2 68.8 65
3 143.1 131
4 286.3 275
5 458.0 458
6 610.7 618
7 697.9 729
8 697.9 682
9 620.4 628
10 496.3 512
11 361.0 343
12 240.6 240
13 148.1 150
14 84.6 91
15 45.1 41
>=16 41.2 37
Overall p is 0.0416