1,1

Next entry must be greater than 4.4*10^18.

G. Resta, Tridigital Triangular Numbers

Cf. A000217, A119156. See A119034 for a table of cross-references.

Sequence in context: A163855 A041291 A054919 this_sequence A079701 A096208 A123995

Adjacent sequences: A119154 A119155 A119156 this_sequence A119158 A119159 A119160

nonn,base,more

Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006

Lower bound for the next term updated by Max Alekseyev (maxale(AT)gmail.com), May 21 2009