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A165251 Variation on Delannoy array/triangle; based on a triangular sum with the base multiplied by 2. 0
1, 2, 2, 4, 9, 4, 8, 28, 28, 8, 16, 76, 121, 76, 16, 32, 192, 422, 422, 192, 32, 64, 464, 1304, 1809, 1304, 464, 64, 64, 464, 1304, 1809, 1304, 464, 64, 128, 1088, 3728, 6648, 6648, 3728, 1088, 128, 256, 2496, 10096, 22056, 28401, 22056, 10096, 2496, 256, 512 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

If a(1,2,3)=1 sums of rows give A001077.

LINKS

Table of n, a(n) for n=1..53.

EXAMPLE

Triangle begins:

1

2,2

4,9,4

8,28,28,8

16,76,121,76,16

32,192,422,422,192,32

CROSSREFS

Cf. A001077, A001076 (row sums), A008288

Sequence in context: A220369 A220313 A021982 * A264128 A176159 A280859

Adjacent sequences:  A165248 A165249 A165250 * A165252 A165253 A165254

KEYWORD

nonn,tabl

AUTHOR

Mark Dols, Sep 10 2009

STATUS

approved

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Last modified December 3 22:32 EST 2021. Contains 349468 sequences. (Running on oeis4.)