id:A154812 - OEIS Search Results

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Primes n such that smallest digit of n + smallest digit of prime(n) = prime

+0
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2, 13, 19, 23, 29, 31, 47, 59, 61, 67, 79, 97, 103, 107, 109, 113, 157, 163, 167, 191, 193, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 331, 337, 367, 379, 383, 389, 401, 419, 433, 439, 443, 449, 457, 461, 463, 467, 487, 491 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`If 2(prime)=n and 3=prime(2), then 2+3=5(prime) and 2=a(1). If 13(prime)=n and 41=prime(13), then 1+1=2(prime) and 13=a(2). If 19(prime)=n and 67=prime(19), then 1+6=7(prime) and 19=a(3), etc.`
	CROSSREFS	`Sequence in context: A063615 A020585 A038943 this_sequence A019343 A119570 A018485` `Adjacent sequences: A154809 A154810 A154811 this_sequence A154813 A154814 A154815`
	KEYWORD	`nonn`
	AUTHOR	`Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 15 2009`

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

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