A218389 - OEIS

A218389

Numbers k such that the k-th triangular number contains only digits {0,2,4}.

8944, 2209995667055, 6957333458215, 20001000974971249775 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`No other terms below 1.4*10^20.`
	LINKS	`Table of n, a(n) for n=1..4.` `G. Resta, Tridigital Triangular Numbers`
	CROSSREFS	`Cf. A000217, A218390. See A119034 for a table of cross-references.` `Sequence in context: A259631 A251921 A217604 * A180298 A322537 A172637` `Adjacent sequences: A218386 A218387 A218388 * A218390 A218391 A218392`
	KEYWORD	`base,nonn,more`
	AUTHOR	`Max Alekseyev, Oct 27 2012`
	STATUS	`approved`

Last modified March 20 04:42 EDT 2023. Contains 361358 sequences. (Running on oeis4.)