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A031889
Lucky numbers with size of gaps equal to 6 (upper terms).
1
21, 31, 43, 49, 93, 99, 105, 111, 141, 169, 201, 211, 267, 273, 303, 327, 367, 391, 399, 415, 421, 427, 483, 495, 517, 535, 559, 651, 679, 685, 699, 723, 735, 787, 873, 903, 1029, 1093, 1101, 1123, 1189, 1209, 1281, 1291, 1309, 1329, 1395
OFFSET
1,1
LINKS
CROSSREFS
Cf. A000959.
Sequence in context: A123846 A336383 A168000 * A034101 A034111 A077687
KEYWORD
nonn
STATUS
approved