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A229905 Number of binary words of length n with exactly one occurrence of the subword given by the binary expansion of n. 2
0, 1, 1, 2, 4, 10, 30, 26, 78, 156, 278, 722, 1827, 3140, 7800, 5810, 21016, 40260, 76104, 173836, 394492, 520775, 1376090, 3080882, 6887040, 12734023, 28266044, 44217698, 114969792, 211934801, 464129402, 354151217, 1360414116, 2644465928, 5134476403 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..1000

EXAMPLE

a(1) = 1: 1.

a(2) = 1: 10.

a(3) = 2: 011, 110.

a(4) = 4: 0100, 1000, 1001, 1100.

a(5) = 10: 00101, 01010, 01011, 01101, 10100, 10110, 10111, 11010, 11011, 11101.

CROSSREFS

Column k=1 of A233940.

Sequence in context: A126349 A076315 A304124 * A102667 A337675 A148115

Adjacent sequences:  A229902 A229903 A229904 * A229906 A229907 A229908

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Dec 19 2013

STATUS

approved

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Last modified September 21 07:06 EDT 2020. Contains 337267 sequences. (Running on oeis4.)