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A270895
Sierpiński numbers that are squares.
1
18213931681, 5044241991721, 6093734165401, 6278567569849, 17919144076201, 52536446729209, 56470430531761, 72659547739249, 107737943736721, 123343213788001, 136925780937841, 170306127919321, 211292941174561, 296693149397089, 321058916825689
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OFFSET
1,1
COMMENTS
This sequence contains infinitely many numbers that end in 5. See also
A233469
.
LINKS
Table of n, a(n) for n=1..15.
Wikipedia,
Sierpinski number
FORMULA
A000290
INTERSECT
A076336
.
a(n) =
A270896
(n)^2.
CROSSREFS
Cf.
A076336
,
A233469
,
A270896
.
Sequence in context:
A202724
A115537
A233486
*
A273186
A185932
A262533
Adjacent sequences:
A270892
A270893
A270894
*
A270896
A270897
A270898
KEYWORD
nonn
,
hard
AUTHOR
Arkadiusz Wesolowski
, Mar 25 2016
STATUS
approved
