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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
OFFSET
1,1
CROSSREFS
Sequence in context: A263674 A337701 A048699 * A084799 A166136 A120154
KEYWORD
nonn
STATUS
approved