A014428 Even elements in Pascal's triangle.

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

Rémy Sigrist, Table of n, a(n) for n = 1..10111

Example

Triangle begins:
2
4 6 4
10 10

Mathematica

Select[ Flatten[ Table[ Binomial[ n, i ], {n, 0, 20}, {i, 0, n} ] ], EvenQ[ # ]& ]

Crossrefs

Cf. A007318, A014421, A048967.

Sequence in context: A360459 A360458 A074320 * A180935 A151886 A334016

Adjacent sequences: A014425 A014426 A014427 * A014429 A014430 A014431

Keyword

nonn,easy,tabf

Author

Mohammad K. Azarian

Extensions

More terms from Erich Friedman

Offset corrected by Mohammad K. Azarian, Nov 19 2008

Status

approved