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Search: id:A052078
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A052078 Smallest prime formed by concatenating n consecutive decreasing numbers, 0 if no such prime exists. +0
4
2, 43, 0, 10987, 76543, 0, 73727170696867, 4645444342414039, 0, 56555453525150494847, 219218217216215214213212211210209, 0, 25242322212019181716151413, 6059585756555453525150494847, 0 (list; graph; listen)
OFFSET

0,1

COMMENT

Terms for n>6 calculated by Carlos Rivera (crivera(AT)primepuzzles.net) and Felice Russo (felice.russo(AT)katamail.com).

LINKS

C. Rivera, Prime Puzzle 78

CROSSREFS

Cf. A052077, A052079, A052080.

Sequence in context: A152286 A039622 A130506 this_sequence A069544 A085460 A139835

Adjacent sequences: A052075 A052076 A052077 this_sequence A052079 A052080 A052081

KEYWORD

nonn,base,nice

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Jan 15 2000.

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Last modified December 17 13:29 EST 2009. Contains 170826 sequences.


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