A003031Denominators of expansion of Fresnel integral S(z).

6, 336, 42240, 9676800, 3530096640, 1880240947200, 1377317368627200, 1328346084409344000, 1631723190138961920000, 2487305589722682753024000, 4607255276963246207139840000

The first 2 terms appear at position 5,419.

…1613323166636528619326686336062735676303544776280350…
position 5,419
termsstringfirst positionoccurrences
167100,010,387
263365,41999,534
3633642240not within 1,000,000,0000

Searched the first 1,000,000,000 digits. Strings longer than 12 digits are not indexed.