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A214075
Triangle read by rows: T(n,k) = floor(A213998(n,k) / A213999(n,k)), 0<=k<=n.
6
1, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 3, 4, 2, 0, 1, 4, 7, 6, 2, 0, 1, 5, 12, 14, 8, 2, 0, 1, 6, 17, 26, 22, 11, 2, 0, 1, 7, 24, 44, 49, 34, 13, 2, 0, 1, 8, 31, 68, 93, 83, 47, 16, 2, 0, 1, 9, 40, 100, 162, 177, 131, 64, 19, 2, 0, 1, 10, 49, 140, 263, 340, 309
OFFSET
0,8
COMMENTS
T(n,0) = 1;
T(n,1) = n - 1 for n > 0, cf. A001477;
T(n,2) = A074148(n-2) for n > 2;
T(n,n-2) = A022819(n) for n > 1;
T(n,n-1) = A055980(n) for n > 0;
T(n,n) = A000007(n).
LINKS
EXAMPLE
Start of triangle preceded by triangle "A213998/A213999":
. 0: 1 1
. 1: 1 1/2 1 0
. 2: 1 3/2 1/3 1 1 0
. 3: 1 5/2 11/6 1/4 1 2 1 0
. 4: 1 7/2 13/3 25/12 1/5 1 3 4 2 0
. 5: 1 9/2 47/6 77/12 137/60 1/6 1 4 7 6 2 0
. 6: 1 11/2 37/3 57/4 87/10 49/20 1/7, 1 5 12 14 8 2 0.
PROG
(Haskell)
a214075 n k = a214075_tabl !! n !! k
a214075_row n = a214075_tabl !! n
a214075_tabl = zipWith (zipWith div) a213998_tabl a213999_tabl
CROSSREFS
Sequence in context: A337161 A246118 A171882 * A322267 A286933 A295860
KEYWORD
nonn,tabl
AUTHOR
Reinhard Zumkeller, Jul 03 2012
STATUS
approved