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A105295 Primes formed by concatenation of 4 consecutive triangular numbers. 0
171190210231, 465496528561, 94699010351081, 1275132613781431, 7626775078758001, 11325114761162811781, 12561127201288013041, 14535147061487815051, 18145183361852818721, 19701199002010020301 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

a(1)=171190210231 because 171190210231 is the prime formed by concatenation of 4 consecutive triangular numbers i.e. 171,190,210 and 231.

CROSSREFS

Sequence in context: A186177 A104832 A197633 * A104800 A217091 A144173

Adjacent sequences:  A105292 A105293 A105294 * A105296 A105297 A105298

KEYWORD

base,nonn

AUTHOR

Shyam Sunder Gupta (guptass(AT)rediffmail.com), Apr 25 2005

STATUS

approved

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Last modified June 19 05:40 EDT 2013. Contains 226390 sequences.