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A147767 Triangle read by rows, square of A116598. 2
1, 0, 1, 2, 0, 1, 2, 2, 0, 1, 5, 2, 2, 0, 1, 6, 5, 2, 2, 0, 1, 6, 5, 2, 2, 0, 1, 13, 6, 5, 2, 2, 0, 1, 16, 13, 6, 5, 2, 2, 0, 1, 30, 16, 13, 6, 5, 2, 2, 0, 1, 40, 30, 16, 13, 6, 5, 2, 2, 0, 1, 40, 30, 16, 13, 6, 5, 2, 2, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,4

COMMENTS

Row sums = A000990: (1, 1, 3, 5, 10, 16, 29, 45, ...).

LINKS

Table of n, a(n) for n=0..70.

FORMULA

Triangle read by rows, A116598^2. A147766 in every column.

EXAMPLE

First few rows of the triangle:

   1;

   0,  1;

   2,  0, 1;

   2,  2, 0, 1;

   5,  2, 2, 0, 1;

   6,  5, 2, 2, 0, 1;

  13,  6, 5, 2, 2, 0, 1;

  16, 13, 6, 5, 2, 2, 0, 1;

  ...

CROSSREFS

Cf. A147766, A000990.

Sequence in context: A035465 A096144 A118401 * A113678 A305436 A328708

Adjacent sequences:  A147764 A147765 A147766 * A147768 A147769 A147770

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Nov 11 2008

EXTENSIONS

Typo in formula corrected by Olivier Gérard, Jul 25 2016

STATUS

approved

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Last modified June 25 12:55 EDT 2022. Contains 354851 sequences. (Running on oeis4.)