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A104207
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Concatenation of consecutive twin primes.
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0
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3557, 11131719, 29314143, 59617173, 101103107109, 137139149151, 179181191193, 197199227229, 239241269271, 281283311313, 347349419421, 431433461463, 521523569571, 599601617619, 641643659661, 809811821823, 827829857859, 88188310191021, 1031103310491051
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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LINKS
| Chris Caldwell The First 1,008 Twin Primes.
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EXAMPLE
| 3557 is obtained by concatenating the consecutive pair of twin primes (3,5) and (5,7).
11131719 is obtained by concatenating the consecutive pair of twin primes (11,13) and (17,19).
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MATHEMATICA
| With[{ll=Select[Partition[Prime[Range[200]], 2, 1], Last[#]-First[#] == 2&]}, Table[FromDigits[Flatten[IntegerDigits/@Take[ll, {2n-1, 2n}]]], {n, 20}]] (* From Harvey P. Dale, Oct 25 2011 *)
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CROSSREFS
| Sequence in context: A020412 A151810 A083955 * A107646 A204607 A204600
Adjacent sequences: A104204 A104205 A104206 * A104208 A104209 A104210
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KEYWORD
| nonn,base
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AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Apr 01 2005
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EXTENSIONS
| More terms from Harvey P. Dale, Oct 25 2011
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