A119193 - OEIS

A119193

Numbers k such that the k-th triangular number contains only digits {3,5,9}.

2, 10, 34, 109, 8189, 108989, 4470645, 32727845, 1095073836189, 1091781620649419010 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..10.` `G. Resta, Tridigital Triangular Numbers`
	CROSSREFS	`Cf. A000217, A119192. See A119034 for a table of cross-references.` `Sequence in context: A196969 A351551 A351550 * A124634 A306099 A192378` `Adjacent sequences: A119190 A119191 A119192 * A119194 A119195 A119196`
	KEYWORD	`nonn,base,more`
	AUTHOR	`Giovanni Resta, May 10 2006`
	EXTENSIONS	`a(10) from Max Alekseyev, May 21 2011`
	STATUS	`approved`

Last modified February 7 07:00 EST 2023. Contains 360112 sequences. (Running on oeis4.)