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 A028328 Distinct elements in the even-Pascal triangle A028326. 7
 2, 4, 6, 8, 12, 10, 20, 30, 40, 14, 42, 70, 16, 56, 112, 140, 18, 72, 168, 252, 90, 240, 420, 504, 22, 110, 330, 660, 924, 24, 132, 440, 990, 1584, 1848, 26, 156, 572, 1430, 2574, 3432, 28, 182, 728, 2002, 4004, 6006, 6864, 210, 910, 2730, 10010, 12870, 32 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS G. C. Greubel, Table of n, a(n) for n = 0..1000 MATHEMATICA DeleteDuplicates[Table[2*Binomial[n, k], {n, 0, 30}, {k, 0, n}]//Flatten] (* G. C. Greubel, Jul 13 2024 *) PROG (SageMath) A028326=flatten([[2*binomial(n, k) for k in range(n+1)] for n in range(31)]) def a(seq): # order preserving nd = [] # no duplicates [nd.append(i) for i in seq if not nd.count(i) and i%2==0] return nd a(A028326) # A028328 # G. C. Greubel, Jul 13 2024 CROSSREFS Cf. A028326, A028327, A028329, A028330, A028331, A028332. Sequence in context: A099994 A068065 A278228 * A360408 A274262 A092990 Adjacent sequences: A028325 A028326 A028327 * A028329 A028330 A028331 KEYWORD nonn AUTHOR Mohammad K. Azarian EXTENSIONS More terms from James A. Sellers, Dec 08 1999 STATUS approved

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Last modified September 17 12:04 EDT 2024. Contains 375987 sequences. (Running on oeis4.)