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A091308 Primes in A038395 (concatenate first n odd numbers in reverse order). 0
31, 737169676563615957555351494745434139373533312927252321191715131197531, 12312111911711511311110910710510310199979593918987858381797775737169676563615957555351494745434139373533312927252321191715131197531 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Among the first 72 terms only three terms are prime SmBackConOdd(2), SmBackConOdd(37) and SmBackConOdd(62), found by Micha Fleuren.

LINKS

Table of n, a(n) for n=1..3.

M. Fleuren, Smarandache Back Concatenated Odds.

CROSSREFS

Cf. A038395.

Sequence in context: A216791 A324268 A145210 * A023927 A240253 A057376

Adjacent sequences:  A091305 A091306 A091307 * A091309 A091310 A091311

KEYWORD

nonn,bref,base

AUTHOR

M. Grete (martha.grete(AT)web.de), Feb 21 2004

EXTENSIONS

Definition corrected by XU Pingya, Mar 16 2017

STATUS

approved

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Last modified August 22 16:17 EDT 2019. Contains 326178 sequences. (Running on oeis4.)