有理数序列{r(n)}开始于:
0, 1/2, 21/32, 185/128, 18655/4096, 307503/16384, 12548151/131072, 305496477/524288, 138343008375/33554432, 4464248592375/134217728, 323592065474535/1073741824, ....
F_1(1/2,1/2;z)开始膨胀:
(1/2)*z+(21/32)*z^2/2!+(185/128)*z^3/3!+(18655/4096)*z^4/4!+(307503/16384)*z^5/5!+。。。,或
(1/2)*z+(21/64)*z^2+(185/768)*z_3+(18655/98304)*z_4+(102501/655360)*z~5+。。。