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A019468 (n-2)-th Catalan number is congruent to 2n/3 mod n. 0
9, 12, 15, 27, 30, 33, 81, 84, 87, 117, 120, 123, 243, 246, 249, 279, 282, 285, 333, 336, 339, 351, 354, 357, 729, 732, 735, 765, 768, 771, 819, 822, 825, 837, 840, 843, 981, 984, 987, 999, 1002, 1005, 1053, 1056, 1059, 1089, 1092, 1095, 2187 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..49.

CROSSREFS

Sequence in context: A263674 A337701 A048699 * A084799 A166136 A120154

Adjacent sequences:  A019465 A019466 A019467 * A019469 A019470 A019471

KEYWORD

nonn

AUTHOR

Wouter Meeussen

STATUS

approved

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Last modified May 13 05:02 EDT 2021. Contains 343836 sequences. (Running on oeis4.)