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A174294 Triangle T(n,k) read by rows. T(n,0)=1, T(n,1)=T(n-1,k-1)-T(n-1,k), T(n,k)=(T(n-1,k-1)+T(n-2,k-1))-(T(n-1,k)+T(n-2,k)). 6
1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, -1, 0, 1, 1, 0, 0, 2, -2, 0, 1, 1, 1, 0, 0, 3, -3, 0, 1, 1, 0, 1, -2, 1, 4, -4, 0, 1, 1, 1, 0, 3, -6, 3, 5, -5, 0, 1, 1, 0, 0, 0, 6, -12, 6, 6, -6, 0, 1, 1, 1, 1, -3, 3, 9, -20, 10, 7, -7, 0, 1, 1, 0, 0, 4, -12, 12, 11, -30, 15, 8, -8, 0, 1, 1, 1, 0, 0 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,25

LINKS

Table of n, a(n) for n=0..94.

EXAMPLE

Table begins:

n\k|...0...1...2...3...4...5...6...7...8...9..10

---|--------------------------------------------

0..|...1

1..|...1...1

2..|...1...0...1

3..|...1...1...0...1

4..|...1...0...0...0...1

5..|...1...1...1..-1...0...1

6..|...1...0...0...2..-2...0...1

7..|...1...1...0...0...3..-3...0...1

8..|...1...0...1..-2...1...4..-4...0...1

9..|...1...1...0...3..-6...3...5..-5...0...1

10.|...1...0...0...0...6.-12...6...6..-6...0...1

CROSSREFS

Cf. A112468, A112467, A174294, A174295, A174296, A174297.

Sequence in context: A110568 A088689 A076898 * A089385 A124407 A294624

Adjacent sequences:  A174291 A174292 A174293 * A174295 A174296 A174297

KEYWORD

sign,tabl

AUTHOR

Mats Granvik, Mar 15 2010

STATUS

approved

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Last modified May 18 07:26 EDT 2021. Contains 343995 sequences. (Running on oeis4.)