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A155480
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Composites n with identical largest digits of n and n-th prime.
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0
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14, 30, 32, 54, 56, 74, 92, 94, 95, 116, 138, 148, 159, 169, 189, 196, 208, 209, 213, 217, 224, 245, 247, 249, 261, 270, 272, 273, 275, 280, 282, 284, 285, 286, 287, 288, 289, 290, 291, 292, 294, 295, 296, 297, 298, 299, 309, 321, 324, 325, 326, 330, 334, 335
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listen;
history;
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..54.
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EXAMPLE
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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.
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CROSSREFS
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Cf. A000027, A000040.
Sequence in context: A042617 A041390 A162931 * A053751 A063311 A055039
Adjacent sequences: A155477 A155478 A155479 * A155481 A155482 A155483
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KEYWORD
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nonn,base
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AUTHOR
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Juri-Stepan Gerasimov, Jan 23 2009
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EXTENSIONS
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Corrected (190 replaced by 290) by R. J. Mathar, May 10 2010
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STATUS
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approved
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