A119068 Numbers k such that the k-th triangular number contains only digits {0,3,8}.

2, 24, 77, 126797, 12714624, 129079888464, 77885018846797, 4009565647007922, 40750555532000002

Offset

1,1

Comments

Next term exceeds 1.4*10^17.

Links

Table of n, a(n) for n=1..9.

G. Resta, Tridigital Triangular Numbers

Crossrefs

Cf. A000217, A119067. See A119034 for a table of cross-references.

Sequence in context: A195189 A119060 A119050 * A068379 A136280 A123831

Adjacent sequences: A119065 A119066 A119067 * A119069 A119070 A119071

Keyword

nonn,base,more

Author

Giovanni Resta, May 10 2006

Extensions

One more term from Max Alekseyev, Mar 09 2009

Status

approved