Asymptotic expansions of the Glaisher–Kinkelin and Choi–Srivastava constants

The Glaisher–Kinkelin constant A=1.28242712…A=1.28242712… is defined as the limit of the sequenceAn=n−n2/2−n/2−1/12en2/4∏k=1nkk. Choi and Srivastava introduced two mathematical constants B and C (analogous to the Glaisher–Kinkelin constant A). In this note, we present new asymptotic expansions of the Glaisher–Kinkelin and Choi–Srivastava constants.