Smarandache-Kurepa Function

Given the left factorial function

 for  prime is the smallest integer  such that . The first few known values of  are 2, 4, 6, 6, 5, 7, 7, 12, 22, 16, 55, 54, 42, 24, ... for , 5, 7, 11, 17, 19, 23, 31, 37, 41, 61, 71, 73, 89, .... The function  doe not exists for , 13, 29, 43, 47, 53, 67, 79, 83, ....

REFERENCES:

Ashbacher, C. "Some Properties of the Smarandache-Kurepa and Smarandache-Wagstaff Functions." Math. Informatics Quart. 7, 114-116, 1997.

Mudge, M. "Introducing the Smarandache-Kurepa and Smarandache-Wagstaff Functions." Smarandache Notions J. 7, 52-53, 1996.

Mudge, M. "Introducing the Smarandache-Kurepa and Smarandache-Wagstaff Functions." Abstracts of Papers Presented to the Amer. Math. Soc. 17, 583, 1996.