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A104044
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Numbers n such that n7 is prime and n is a multiple of ten.
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0
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10, 30, 60, 90, 130, 160, 190, 220, 270, 330, 340, 360, 390, 400, 450, 510, 540, 550, 580, 600, 660, 690, 720, 730, 750, 760, 790, 870, 880, 900, 990, 1000, 1060, 1180, 1200, 1210, 1290, 1300, 1380, 1390, 1410, 1420, 1440, 1510
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| If t=10, then t7 = 107 (prime).
If t=220, then t7 = 2207 (prime).
If t=450, then t7 = 4507 (prime).
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MATHEMATICA
| Select[10 Range[500], PrimeQ[10#+7]&]
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CROSSREFS
| Sequence in context: A096844 A031299 A124164 * A124080 A034127 A005052
Adjacent sequences: A104041 A104042 A104043 * A104045 A104046 A104047
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KEYWORD
| base,nonn
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AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Mar 01 2005
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EXTENSIONS
| Additional terms provided and Mathematica program provided by Harvey P. Dale, Dec. 9, 2010
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