A038320 Triangle whose (i,j)-th entry is binomial(i,j)*11^(i-j)*6^j.

1, 11, 6, 121, 132, 36, 1331, 2178, 1188, 216, 14641, 31944, 26136, 9504, 1296, 161051, 439230, 479160, 261360, 71280, 7776, 1771561, 5797836, 7906140, 5749920, 2352240, 513216, 46656, 19487171, 74405562, 121754556, 110685960

Offset

0,2

Links

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

Bjorg N. Cyvin, Jon Brunvoll, and Sven J. Cyvin, Isomer enumeration of unbranched catacondensed polygonal systems with pentagons and heptagons, Match, No. 34 (Oct 1996), 109-121.

Bulat Khaidarov, Enumeration of Certain k-Block Partitions of Barry, J. Int. Seq. 29 (2026), Art. 26.2.8. See p. 6 (Table 2).

Mathematica

Table[Binomial[i, j]11^(i-j) 6^j, {i, 0, 10}, {j, 0, i}]//Flatten (* Harvey P. Dale, Feb 12 2022 *)

Crossrefs

Sequence in context: A190624 A241308 A356705 * A010185 A341195 A005603

Adjacent sequences: A038317 A038318 A038319 * A038321 A038322 A038323

Keyword

nonn,tabl,easy

Author

N. J. A. Sloane

Status

approved