

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
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OFFSET

0,2


LINKS

Lars Blomberg, Table of n, a(n) for n = 0..10000
Julien Leroy, Michel Rigo, Manon Stipulanti, Counting the number of nonzero coefficients in rows of generalized Pascal triangles, Discrete Mathematics 340 (2017), 862881.


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: A268680 A126974 A089058 * A303735 A187103 A080444
Adjacent sequences: A282714 A282715 A282716 * A282718 A282719 A282720


KEYWORD

nonn,tabf


AUTHOR

N. J. A. Sloane, Mar 02 2017


EXTENSIONS

More terms from Lars Blomberg, Mar 03 2017


STATUS

approved



