login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A065589 Smallest prime beginning with exactly n 6's. 3
2, 61, 661, 6661, 666607, 666667, 66666629, 66666667, 666666667, 6666666661, 66666666667, 6666666666629, 66666666666629, 666666666666631, 66666666666666047, 66666666666666601, 6666666666666666059 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

M. F. Hasler, Table of n, a(n) for n = 1..201

MATHEMATICA

Do[a = Table[6, {n}]; k = 0; While[b = FromDigits[ Join[a, IntegerDigits[k] ]]; First[ IntegerDigits[k]] == 6 || !PrimeQ[b], k++ ]; Print[b], {n, 1, 17} ]

CROSSREFS

Cf. A037065, A065584 - A065592.

Sequence in context: A298333 A299224 A037065 * A190681 A181005 A289644

Adjacent sequences:  A065586 A065587 A065588 * A065590 A065591 A065592

KEYWORD

nonn,base

AUTHOR

Robert G. Wilson v, Nov 28 2001

EXTENSIONS

Corrected by Don Reble, Jan 17 2007

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 3 23:53 EST 2020. Contains 338920 sequences. (Running on oeis4.)