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A105296 Primes formed by concatenation of 5 consecutive triangular numbers. 0
36101521, 435465496528561, 48514950505051515253, 1522515400155761575315931, 3213132385326403289633153, 3315333411336703393034191, 3631536585368563712837401 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

a(1)=36101521 because 36101521 is the prime formed by concatenation of 5 consecutive triangular numbers i.e. 3,6,10,15 and 21.

CROSSREFS

Sequence in context: A064586 A183593 A183755 * A254389 A254396 A253984

Adjacent sequences:  A105293 A105294 A105295 * A105297 A105298 A105299

KEYWORD

base,nonn

AUTHOR

Shyam Sunder Gupta, Apr 25 2005

STATUS

approved

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Last modified May 14 15:03 EDT 2021. Contains 343884 sequences. (Running on oeis4.)