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A046221 Odd numbers on numerators of 1/2-Pascal triangle (by row). 0
1, 1, 1, 1, 1, 1, 1, 3, 3, 1, 1, 5, 3, 5, 1, 1, 7, 11, 11, 7, 1, 1, 9, 9, 11, 9, 9, 1, 1, 11, 27, 27, 11, 1, 1, 13, 19, 67, 67, 19, 13, 1, 1, 15, 51, 105, 147, 147, 105, 51, 15, 1, 1, 17, 33, 147, 33, 17, 1, 1, 19, 83, 111, 273, 273, 111, 83, 19, 1, 1, 21, 51 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,8

LINKS

Table of n, a(n) for n=1..72.

EXAMPLE

1/1; --> 1

1/1  1/1;  --> 1 1

1/1  1/2  1/1; --> 1 1 1

1/1  3/2  3/2  1/1; --> 1 3 3 1

1/1  5/2  3/1  5/2  1/1; --> 1 5 3 5 1

1/1  7/2 11/2 11/2  7/2  1/1; --> 1 7 11 11 7 1

1/1  9/2  9/1 11/1  9/1  9/2  1/1; --> 1 9 9 11 9 9 1

1/1 11/2 27/2 20/1 20/1 27/2 11/2 1/1; --> 1 11 27 27 11 1

...

CROSSREFS

Cf. A046213.

Sequence in context: A179680 A123562 A046218 * A220837 A187371 A056611

Adjacent sequences:  A046218 A046219 A046220 * A046222 A046223 A046224

KEYWORD

tabf,nonn,frac,less

AUTHOR

Mohammad K. Azarian

EXTENSIONS

More terms from Sean A. Irvine, Apr 07 2021

STATUS

approved

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Last modified September 16 23:53 EDT 2021. Contains 347477 sequences. (Running on oeis4.)