A119190 Triangular numbers composed of digits {3,5,8}.

3, 55, 8385, 353833535835, 338385588883835583555, 5838535388555338533383385, 55335355335583353383833585

Offset

1,1

Comments

a(8) > 10^40. - Tyler Busby, Mar 29 2023

Links

Table of n, a(n) for n=1..7.

Giovanni Resta, Tridigital Triangular Numbers.

Formula

a(n) = A000217(A119191(n)). - Tyler Busby, Mar 29 2023

Crossrefs

Cf. A000217, A119191. See A119033 for a table of cross-references.

Sequence in context: A015099 A297965 A002818 * A172748 A172822 A172873

Adjacent sequences: A119187 A119188 A119189 * A119191 A119192 A119193

Keyword

nonn,base,more

Author

Giovanni Resta, May 10 2006

Status

approved