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A028266 Even elements in 3-Pascal triangle A028262 (by row). 1
4, 4, 8, 6, 6, 26, 8, 26, 26, 8, 34, 90, 34, 10, 10, 148, 266, 322, 266, 148, 12, 64, 414, 588, 588, 414, 64, 12, 76, 1002, 1176, 1002, 76, 14, 880, 2178, 2178, 880, 14, 430, 4356, 430, 16, 118, 3718, 6292, 6292, 3718, 118, 16, 134, 2184, 10010, 16302, 10010 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..54.

CROSSREFS

Sequence in context: A290841 A321774 A254267 * A275982 A165662 A110648

Adjacent sequences:  A028263 A028264 A028265 * A028267 A028268 A028269

KEYWORD

nonn,easy

AUTHOR

Mohammad K. Azarian

EXTENSIONS

More terms from James A. Sellers

STATUS

approved

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Last modified August 3 15:54 EDT 2021. Contains 346439 sequences. (Running on oeis4.)