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A133371 Triangle read by rows: T(i,j) is the number of i-permutations of 14 objects a,b,c,d,e,f,g,h,i,j,k,l,m,n, with repetition allowed, containing j a's. 2
1, 13, 1, 169, 26, 1, 2197, 507, 39, 1, 28561, 8788, 1014, 52, 1, 371293, 142805, 21970, 1690, 65, 1, 4826809, 2227758, 428415, 43940, 2535, 78, 1, 62748517, 33787663, 7797153, 999635, 76895, 3549, 91, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Mirror image of A123187. - Philippe Deléham, Dec 27 2007

LINKS

Table of n, a(n) for n=0..35.

EXAMPLE

1

13, 1

169, 26, 1

2197, 507, 39, 1

28561, 8788, 1014, 52, 1

371293, 142805, 21970, 1690, 65, 1

4826809, 2227758, 428415, 43940, 2535, 78, 1

62748517, 33787663, 7797153, 999635, 76895, 3549, 91, 1

MAPLE

for i from 0 to 7 do seq(binomial(i, j)*13^(i-j), j = 0 .. i) od;

MATHEMATICA

Flatten[Table[Binomial[i, j] 13^(i-j), {i, 0, 7}, {j, 0, i}]] (* Harvey P. Dale, Nov 01 2011 *)

CROSSREFS

Cf. A001022, A008595.

Sequence in context: A277866 A278594 A120392 * A223515 A281092 A010223

Adjacent sequences:  A133368 A133369 A133370 * A133372 A133373 A133374

KEYWORD

easy,nonn,tabl

AUTHOR

Zerinvary Lajos, with help from Emeric Deutsch, Dec 21 2007

STATUS

approved

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Last modified February 20 12:33 EST 2018. Contains 299379 sequences. (Running on oeis4.)