Bi⁡(z)=Bi⁡(0)⁢(1+13!⁢z3+1⋅46!⁢z6+1⋅4⋅79!⁢z9+⋯)+Bi′⁡(0)⁢(z+24!⁢z4+2⋅57!⁢z7+2⋅5⋅810!⁢z10+⋯),