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CROSSREFS
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Cf. 2 X n A048739, 3 X n A069325, 4 X n A069326, 5 X n A069327, 6 X n A069328, 7 X n A069329, 8 X n A069330, 9 X n A069331, 10 X n A069332, 11 X n A069333, 12 X n A069334, 13 X n A069335, 14 X n A069336, 15 X n A069337, 16 X n A069338, 17 X n A069339, 18 X n A069340, 20 X n A069342, n X n A069343, n X n symmetric A069344.
Adjacent sequences: A069338 A069339 A069340 this_sequence A069342 A069343 A069344
Sequence in context: A108717 A038450 A075093 this_sequence A072142 A043674 A028241
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