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A166360 Triangle of Narayana numbers mod 2, T(n,k) = A001263(n,k) mod 2. 4
1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Reinhard Zumkeller, Rows n = 1..120 of triangle, flattened

EXAMPLE

Triangle begins:

1

1 1

1 1 1

1 0 0 1

1 0 0 0 1

1 1 0 0 1 1

1 1 1 1 1 1 1

1 0 0 0 0 0 0 1

1 0 0 0 0 0 0 0 1

1 1 0 0 0 0 0 0 1 1

1 1 1 0 0 0 0 0 1 1 1

1 0 0 1 0 0 0 0 1 0 0 1

1 0 0 0 1 0 0 0 1 0 0 0 1

1 1 0 0 1 1 0 0 1 1 0 0 1 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1

....

PROG

(PARI) p = 2; s=14; NT = matrix(s, s, n, k, binomial(n-1, k-1)*binomial(n, k-1)/k);

NTMP = matrix(s, s, n, k, NT[n, k]%p);

for(n=1, s, for(k=1, n, print1(NTMP[n, k], " ")); print())

(Haskell)

a166360 n k = a166360_tabl !! (n-1) !! (k-1)

a166360_row n = a166360_tabl !! (n-1)

a166360_tabl = map (map (flip mod 2)) a001263_tabl

-- Reinhard Zumkeller, Oct 10 2013

CROSSREFS

Cf. A001263, A047999, A007318.

Cf. A230116 (rows seen as binary numbers).

Sequence in context: A014191 A014086 A014163 * A143104 A127236 A117947

Adjacent sequences:  A166357 A166358 A166359 * A166361 A166362 A166363

KEYWORD

easy,nonn,tabl

AUTHOR

Gerald McGarvey, Oct 12 2009

STATUS

approved

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Last modified February 23 09:52 EST 2018. Contains 299535 sequences. (Running on oeis4.)