A119176 Triangular numbers composed of digits {2,6,9}.

6, 66, 666, 2926, 29962999696266, 226966926929226, 9996922966699222296, 296292269222296622226, 22266696966226666966622226, 266669269626696962299266226222926

Offset

1,1

Comments

a(11) > 10^40. - Tyler Busby, Mar 28 2023

Links

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

Giovanni Resta, Tridigital Triangular Numbers.

Formula

a(n) = A000217(A119177(n)). - Tyler Busby, Mar 28 2023

Crossrefs

Cf. A000217, A053931, A119177. See A119033 for a table of cross-references.

Sequence in context: A119142 A119091 A119100 * A155630 A119125 A137120

Adjacent sequences: A119173 A119174 A119175 * A119177 A119178 A119179

Keyword

nonn,base,more

Author

Giovanni Resta, May 10 2006

Extensions

a(10) from Tyler Busby, Mar 28 2023

Status

approved