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A216959 A216958/2. 2
1, 1, 2, 3, 5, 10, 18, 36, 71, 140, 280, 557, 1111, 2218, 4432, 8859, 17710, 35412, 70812, 141605, 283197, 566364, 1132695, 2265363, 4530659, 9061259, 18122454, 36244783, 72489435, 144978745, 289957235, 579914215, 1159828166, 2319655810, 4639311084 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..35.

Index entries for sequences related to curling numbers

CROSSREFS

Cf. A216958.

Sequence in context: A318301 A030032 A002661 * A065053 A237250 A283314

Adjacent sequences:  A216956 A216957 A216958 * A216960 A216961 A216962

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Sep 27 2012

STATUS

approved

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Last modified September 19 05:11 EDT 2020. Contains 337175 sequences. (Running on oeis4.)