Some prime numbers of the forms 2𝐴3ⁿ+1 and 2𝐴3ⁿ-1

Williams, H. C.; Zarnke, C. R.

doi:10.1090/S0025-5718-1972-0314747-X

Some prime numbers of the forms $2A3^{n}+1$ and $2A3^{n}-1$
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by H. C. Williams and C. R. Zarnke PDF

Math. Comp. 26 (1972), 995-998 Request permission

Abstract:

All primes of the form $2A{3^n} + 1$ and of the form $2A{3^n} - 1$, where $1 \leqq A \leqq 50$ and $1 \leqq n \leqq 325$, are found. Some large twin primes are also determined.

References

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