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A282719 Numbers of admissible subwords associated with the tribonacci numeration system. 0
1, 2, 3, 3, 4, 5, 5, 5, 7, 8, 6, 7, 7, 6, 9, 11, 9, 11, 12, 10, 9, 11, 11, 9, 7, 11, 14, 12, 15, 17, 15, 14, 18, 19, 15, 14, 14, 11, 15, 17, 15, 15, 17, 15, 8, 13, 17, 15, 19, 22 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..49.

Julien Leroy, Michel Rigo, Manon Stipulanti, Counting the number of non-zero coefficients in rows of generalized Pascal triangles, Discrete Mathematics 340 (2017), 862-881. See Example 43. Also available at Université de Liège.

EXAMPLE

As Table 6 of Leroy et al. (2107) shows, this sequence may also be presented as an irregular triangle:

1

2 3

3

4 5 5

5 7 8 6 7 7

6 9 11 9 11 12 10 9 11 11 9

7 11 14 12 15 17 15 14 18 19 15 14 14 11 15 17 15 15 17 15

8 13 17 15 19 22

...

CROSSREFS

Sequence in context: A324477 A287292 A260717 * A061451 A205542 A086155

Adjacent sequences:  A282716 A282717 A282718 * A282720 A282721 A282722

KEYWORD

nonn,more,tabf

AUTHOR

N. J. A. Sloane, Mar 02 2017

STATUS

approved

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Last modified January 18 13:30 EST 2020. Contains 331007 sequences. (Running on oeis4.)