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A282717
Number of nonzero entries in row n of A282716.
3
1, 2, 3, 4, 4, 5, 6, 6, 6, 8, 9, 8, 8, 7, 10, 12, 12, 12, 10, 12, 12, 8, 12, 15, 16, 16, 15, 18, 18, 12, 16, 18, 16, 16, 9, 14, 18, 20, 20, 20, 24, 24, 18, 24, 27, 24, 24, 14, 20, 24, 24, 24, 20, 24, 24, 10, 16, 21, 24, 24, 25, 30, 30, 24, 32, 36, 32, 32, 21
OFFSET
0,2
LINKS
Julien Leroy, Michel Rigo, and Manon Stipulanti, Counting the number of non-zero coefficients in rows of generalized Pascal triangles, Discrete Mathematics 340 (2017), 862-881.
Michel Rigo and Manon Stipulanti, Revisiting regular sequences in light of rational base numeration systems, arXiv:2103.16966 [cs.FL], 2021. Mentions this sequence.
EXAMPLE
Table 4 of Leroy et al. (2017) shows that this sequence may also be presented as an irregular triangle,
1,
2,
3,
4,4,
5,6,6,
6,8,9,8,8,
7,10,12,12,12,10,12,12,
8,12,15,16,16,15,18,18,12,16,18,16,16,
...
CROSSREFS
Cf. A282716.
A282731 gives partial sums.
Sequence in context: A126974 A354459 A089058 * A187103 A303735 A080444
KEYWORD
nonn,tabf
AUTHOR
N. J. A. Sloane, Mar 02 2017
EXTENSIONS
More terms from Lars Blomberg, Mar 03 2017
STATUS
approved