

A355806


a(n) is the number of odd terms in nth row of triangle A355802.


2



1, 2, 2, 2, 2, 4, 4, 4, 6, 8, 8, 8, 6, 8, 10, 8, 10, 12, 12, 16, 14, 12, 10, 16, 16, 12, 18, 20, 16, 20, 18, 16, 22, 20, 20, 24, 26, 24, 26, 24, 24, 28, 26, 24, 30, 36, 32, 32, 22, 32, 34, 24, 34, 36, 28, 40, 38, 28, 34, 40, 32, 36, 42, 36, 42, 44, 36, 40, 46
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OFFSET

0,2


LINKS



EXAMPLE

The first terms, alongside the corresponding rows in A355802, are:
  
0 1 [1]
1 2 [1, 1]
2 2 [1, 2, 1]
3 2 [1, 2, 2, 1]
4 2 [1, 2, 2, 2, 1]
5 4 [1, 2, 3, 3, 2, 1]
6 4 [1, 2, 3, 4, 3, 2, 1]
7 4 [1, 2, 3, 4, 4, 3, 2, 1]
8 6 [1, 2, 3, 5, 6, 5, 3, 2, 1]
9 8 [1, 2, 3, 5, 7, 7, 5, 3, 2, 1]


PROG

(PARI) See Links section.


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



