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A134951 Mountain primes. +0
10
131, 151, 181, 191, 1231, 1291, 1321, 1361, 1381, 1451, 1471, 1481, 1531, 1571, 1621, 1721, 1741, 1831, 1861, 1871, 1931, 1951, 12391, 12421, 12451, 12491, 12541, 12641, 12671, 12721, 12781, 12791, 12821, 12841, 12941, 13421, 13451, 13591, 13681 (list; graph; listen)
OFFSET

1,1

COMMENT

Mountain numbers that are prime numbers. This sequence is finite.

This sequence has 2620 terms. The largest is 134567897654321. [From Jud McCranie (j.mccranie(AT)comcast.net), Feb 23 2009, Feb 24 2009]

EXAMPLE

The number of this sequence (A134951) is a mountain prime because 134951 is a mountain number and 134951 is a prime number.

. . . 9 . .

. . . . . .

. . . . . .

. . . . . .

. . . . 5 .

. . 4 . . .

. 3 . . . .

. . . . . .

1 . . . . 1

CROSSREFS

Cf. Prime numbers: A000040. Mountain numbers: A134941.

Sequence in context: A039558 A045164 A167845 this_sequence A164294 A155924 A090264

Adjacent sequences: A134948 A134949 A134950 this_sequence A134952 A134953 A134954

KEYWORD

fini,nonn,base,new

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Nov 25 2007

EXTENSIONS

Edited by Omar E. Pol (info(AT)polprimos.com), Feb 26 2009

More terms from Max Alekseyev (maxale(AT)gmail.com), Feb 06 2010

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Last modified February 9 11:24 EST 2010. Contains 172296 sequences.


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