A028327 Elements in the even-Pascal triangle A028326 that are not 2.

4, 6, 6, 8, 12, 8, 10, 20, 20, 10, 12, 30, 40, 30, 12, 14, 42, 70, 70, 42, 14, 16, 56, 112, 140, 112, 56, 16, 18, 72, 168, 252, 252, 168, 72, 18, 20, 90, 240, 420, 504, 420, 240, 90, 20, 22, 110, 330, 660, 924, 924, 660, 330, 110, 22, 24, 132, 440, 990, 1584, 1848

Offset: 0

Author

Mohammad K. Azarian

Keywords

• nonn

Links

• G. C. Greubel, Table of n, a(n) for n = 0..1000

Crossrefs

Cf. A028326, A028328, A028329, A028330, A028331, A028332.

Programs

Magma

[2*Binomial(n, k): k in [1..n-1], n in [1..12]]; // G. C. Greubel, Jul 13 2024

Mathematica

Table[2*Binomial[n,k], {n,13}, {k,n-1}]//Flatten (* G. C. Greubel, Jul 13 2024 *)

SageMath

flatten([[2*binomial(n,k) for k in range(1,n)] for n in range(2,14)]) # G. C. Greubel, Jul 13 2024

Extensions

More terms from Donald Manchester, Jr. (s1199170(AT)cedarnet.cedarville.edu)