1,1

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

a(1)=10631 because 10631 is the prime formed by reverse concatenation of 4consecutive triangular numbers i.e. 1,3,6 and 10.

Sequence in context: A184092 A110018 A249229 * A009421 A013817 A013904

Adjacent sequences: A105301 A105302 A105303 * A105305 A105306 A105307

base,nonn

Shyam Sunder Gupta, Apr 25 2005

approved