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A032307 Shifts left 2 places under "EFK" (unordered, size, unlabeled) transform. 0
1, 1, 1, 1, 2, 2, 4, 6, 10, 17, 29, 50, 88, 156, 279, 498, 909, 1639, 3010, 5495, 10152, 18674, 34745, 64312, 120197, 223850, 420057, 785683, 1480429, 2779462, 5253203, 9899964, 18761327, 35461501, 67383407, 127689713 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..36.

CROSSREFS

Sequence in context: A060553 A293673 A293505 * A007560 A032237 A276061

Adjacent sequences:  A032304 A032305 A032306 * A032308 A032309 A032310

KEYWORD

nonn

AUTHOR

Christian G. Bower

STATUS

approved

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Last modified February 20 15:54 EST 2018. Contains 299380 sequences. (Running on oeis4.)