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A155480 Composites n with identical largest digits of n and n-th prime. +0
1
14, 30, 32, 54, 56, 74, 92, 94, 95, 116, 138, 148, 159, 169, 196, 208, 209, 213, 217, 224, 245, 247, 249, 261, 270, 272, 273, 275, 280, 282, 284, 285, 286, 287, 288, 289, 190, 291, 292, 294, 295, 296, 297, 298, 299, 309, 321, 324, 325, 326 (list; graph; listen)
OFFSET

1,1

EXAMPLE

If n=14=composite and 43=prime(14), then 1<4=4>3 and 14=a(1). If n=30=composite and 113=prime(30), then 0<3=3>1=1 and 30=a(2). If n=32=composite and 131=prime(32), then 2<3=3>1=1 and 32=a(3), etc.

CROSSREFS

Cf. A000027, A000040.

Sequence in context: A042617 A041390 A162931 this_sequence A053751 A063311 A055039

Adjacent sequences: A155477 A155478 A155479 this_sequence A155481 A155482 A155483

KEYWORD

nonn,base

AUTHOR

Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 23 2009

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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