(4096 birthdays, 2147483647 days in year)
Table of Expected vs. Observed counts:
<= 2 68.8 72
3 143.1 148
4 286.3 303
5 458.0 469
6 610.7 584
7 697.9 678
8 697.9 704
9 620.4 618
10 496.3 504
11 361.0 362
12 240.6 252
13 148.1 136
14 84.6 92
15 45.1 47
>= 16 41.2 31
Overall p is 0.1230