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A155478 Even composites n such that smallest digit of n > smallest digit of n-th prime. +0
1
6, 8, 26, 28, 32, 34, 36, 38, 42, 44, 46, 48, 54, 56, 58, 64, 66, 68, 74, 76, 78, 82, 84, 86, 88, 94, 96, 98, 126, 172, 174, 176, 178, 182, 184, 186, 212, 214, 222, 224, 226, 228, 232, 234, 236, 238, 242, 244, 246, 248, 252, 254, 256, 258, 262, 264, 266, 268, 272 (list; graph; listen)
OFFSET

1,1

EXAMPLE

If n=6=even composite and 13=prime(6), then 6>1 and 6+a(1). If n=8=even composite and 19=prime(8), then 8>1 and 8=a(2). If n=26=even composite and 101=prime(26), then 2>0 and 26=a(3), etc.

CROSSREFS

Cf. A000027, A000040, A005843.

Sequence in context: A156231 A024860 A025100 this_sequence A107366 A024873 A066231

Adjacent sequences: A155475 A155476 A155477 this_sequence A155479 A155480 A155481

KEYWORD

nonn,base

AUTHOR

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

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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