id:A155053 - OEIS Search Results

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Primes n with nonprime smallest digit of prime(n).

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5, 7, 11, 13, 29, 31, 37, 41, 43, 47, 53, 67, 79, 83, 89, 97, 101, 113, 127, 157, 1673, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 347, 349, 353, 359, 379, 397 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`If n=5=prime and 11=prime(5), then 1=1=nonprime and 5=a(1). If n=7=prime and 17=prime(7), then nonprime=1<7 and 7=a(2). If n=11=prime and 31=prime(11), then 3>1=nonprime and 11=a(3), etc.`
	CROSSREFS	`Cf. A000040.` `Sequence in context: A098865 A022885 A135774 this_sequence A135930 A163429 A136055` `Adjacent sequences: A155050 A155051 A155052 this_sequence A155054 A155055 A155056`
	KEYWORD	`nonn,base`
	AUTHOR	`Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 19 2009`

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.

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