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A102546 Numbers t such that t1 is prime and t is a multiple of 10. +0
1
10, 40, 60, 70, 120, 130, 160, 180, 190, 280, 300, 330, 370, 400, 420 (list; graph; listen)
OFFSET

1,1

EXAMPLE

If t=10, then t1 = 101 (prime).

If t=180, then t1 = 1801 (prime).

If t=420, then t1 = 4201 (prime).

CROSSREFS

Sequence in context: A055514 A055233 A104045 this_sequence A108777 A000132 A060317

Adjacent sequences: A102543 A102544 A102545 this_sequence A102547 A102548 A102549

KEYWORD

nonn,base

AUTHOR

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Feb 24 2005

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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