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A032152
Doubles (index 2+) under "CGJ" (necklace, element, labeled) transform.
0
2, 2, 12, 150, 2340, 49740, 1282680, 38866170, 1358224140, 53745255060, 2375545686360, 115997734355580, 6201886849278120, 360337995662725080, 22607152121757162960, 1523203554020831512830
OFFSET
1,1
CROSSREFS
Sequence in context: A032227 A032069 A003090 * A032057 A364774 A130718
KEYWORD
nonn
STATUS
approved