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A014428
Even elements in Pascal's triangle.
4
2, 4, 6, 4, 10, 10, 6, 20, 6, 8, 28, 56, 70, 56, 28, 8, 36, 84, 126, 126, 84, 36, 10, 120, 210, 252, 210, 120, 10, 330, 462, 462, 330, 12, 66, 220, 792, 924, 792, 220, 66, 12, 78, 286, 1716, 1716, 286, 78, 14, 364, 2002, 3432, 2002, 364, 14, 16, 120, 560, 1820
OFFSET
1,1
LINKS
EXAMPLE
Triangle begins:
2
4 6 4
10 10
MATHEMATICA
Select[ Flatten[ Table[ Binomial[ n, i ], {n, 0, 20}, {i, 0, n} ] ], EvenQ[ # ]& ]
CROSSREFS
KEYWORD
nonn,easy,tabf
EXTENSIONS
More terms from Erich Friedman
Offset corrected by Mohammad K. Azarian, Nov 19 2008
STATUS
approved