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A134721 Bisection of Mersenne primes A000668. 3
3, 31, 8191, 524287, 2305843009213693951, 162259276829213363391578010288127 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..6.

FORMULA

a(n) = A000668(2*n - 1).

EXAMPLE

a(3) = 8191 because the (2*3-1=5)th Mersenne prime is 8191.

CROSSREFS

Cf. A000668, A134722.

Sequence in context: A048562 A022499 A129209 * A002707 A283247 A261472

Adjacent sequences:  A134718 A134719 A134720 * A134722 A134723 A134724

KEYWORD

easy,nonn

AUTHOR

Omar E. Pol, Nov 11 2007

STATUS

approved

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Last modified October 23 10:54 EDT 2021. Contains 348211 sequences. (Running on oeis4.)