1,1
8171728 * 8171729 = 6677714//6677712, where // denotes
concatenation.
Cf. A116141, A116265, A116273, A116285.
Sequence in context: A182791 A115476 A172876 * A182792 A067484 A193150
Adjacent sequences: A116269 A116270 A116271 * A116273 A116274 A116275
nonn,base
Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 06 2006