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URL: https://oeis.org/A381814

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A381814
Size of the largest component of the blet graph for n coins.
4
2, 5, 20, 8, 56, 56, 74, 180, 660, 220, 2288, 2002, 2942, 7280, 24752, 8568, 93024, 77520, 120920, 298452, 1009470, 346104, 3845600, 3289000, 5067974, 12432420, 42921450, 14307150, 161280600, 140244000, 215188426, 524512560, 1835793960
OFFSET
3,1
COMMENTS
See A381813 for the definition of the blet graph.
FORMULA
a(2*n) >= A075273(n) (the size of the component containing the vertex (HT)^n).
EXAMPLE
For n = 4, the blet graph has 2 components of maximum size a(4) = 5: {TTTH, THTT, THHH, HTHT, HHTH} and {TTHT, THTH, HTTT, HTHH, HHHT}.
PROG
(Python) # see linked program
CROSSREFS
Cf. A075273, A381812, A381813 (number of components of size at least 2).
Sequence in context: A270556 A059079 A177494 * A136900 A136898 A077138
KEYWORD
nonn,more
AUTHOR
EXTENSIONS
a(24)-a(28) from Michael S. Branicky, Mar 08 2025
a(29)-a(30) from Michael S. Branicky, Mar 12 2025
a(31)-a(35) from Bert Dobbelaere, Mar 16 2025
STATUS
approved