A038259 Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j)*5^j.

1, 6, 5, 36, 60, 25, 216, 540, 450, 125, 1296, 4320, 5400, 3000, 625, 7776, 32400, 54000, 45000, 18750, 3125, 46656, 233280, 486000, 540000, 337500, 112500, 15625, 279936, 1632960, 4082400, 5670000, 4725000, 2362500, 656250, 78125

Offset

0,2

References

B. N. Cyvin et al., Isomer enumeration of unbranched catacondensed polygonal systems with pentagons and heptagons, Match, No. 34 (Oct 1996), pp. 109-121.

Links

Harvey P. Dale, Table of n, a(n) for n = 0..1000

Example

   1
   6    5
  36   60   25
216  540  450  125
1296 4320 5400 3000  625
7776 32400 54000 45000 18750 3125

Mathematica

Table[Binomial[k, m]6^(k-m) 5^m, {k, 0, 10}, {m, 0, k}]//Flatten (* Harvey P. Dale, Aug 26 2020 *)

Crossrefs

Cf. A001020 (row sums).

Sequence in context: A029763 A283980 A288211 * A358590 A302750 A268000

Adjacent sequences: A038256 A038257 A038258 * A038260 A038261 A038262

Keyword

nonn,tabl,easy

Author

N. J. A. Sloane.

Status

approved