OFFSET
1,1
EXAMPLE
a(1)=1178111628114761132511175110261087810731 because 1178111628114761132511175110261087810731 is the prime formed by reverse concatenation of 8 consecutive triangular numbers i.e. 10731,10878,11026,11175,11325,11476,11628 and 11781.
MATHEMATICA
Select[FromDigits[Flatten[(IntegerDigits/@Reverse[#])]]&/@Partition[ Accumulate[ Range[ 2000]], 8, 1], PrimeQ] (* Harvey P. Dale, Mar 01 2023 *)
CROSSREFS
KEYWORD
base,nonn,bref
AUTHOR
Shyam Sunder Gupta, Apr 25 2005
STATUS
approved