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A071613 a(n) is the smallest prime such that it is the first of n consecutive primes with equal digit sum. 1
2, 523, 22193, 1442173, 5521819, 354963229, 881160173, 881160173, 441586802467 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

a(3) = 22193, since 22193,22229,22247 are three consecutive primes with digit sum 17 and this is the first occurrence of three consecutive primes with equal digit sum.

CROSSREFS

Cf. A006567, A070905, A071614.

Sequence in context: A196290 A080778 A007513 * A202277 A177836 A101702

Adjacent sequences:  A071610 A071611 A071612 * A071614 A071615 A071616

KEYWORD

base,more,nonn

AUTHOR

Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), May 27 2002

EXTENSIONS

a(7)-a(9) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Dec 02 2009

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.