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A046848 Primes of form n*2^n+(n-1). 1
2, 67, 389, 32212254749, 584115552289, 1861861819085211933448282832989, 22747455000408352326750293979672813380881340606518608030931171147991 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The next term has 341 digits. - Harvey P. Dale, Apr 15 2017

LINKS

Table of n, a(n) for n=1..7.

MATHEMATICA

Select[Table[n 2^n+n-1, {n, 300}], PrimeQ] (* Harvey P. Dale, Apr 15 2017 *)

CROSSREFS

Cf. A046849.

Sequence in context: A174602 A154880 A160958 * A318064 A089661 A191808

Adjacent sequences:  A046845 A046846 A046847 * A046849 A046850 A046851

KEYWORD

hard,nonn

AUTHOR

Felice Russo

STATUS

approved

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Last modified March 28 14:56 EDT 2020. Contains 333089 sequences. (Running on oeis4.)