A038328 Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*2^j.

1, 12, 2, 144, 48, 4, 1728, 864, 144, 8, 20736, 13824, 3456, 384, 16, 248832, 207360, 69120, 11520, 960, 32, 2985984, 2985984, 1244160, 276480, 34560, 2304, 64, 35831808, 41803776, 20901888, 5806080, 967680, 96768, 5376, 128

Offset

0,2

Links

Michael De Vlieger, Table of n, a(n) for n = 0..11475 (rows n = 0..150, flattened)

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]*12^(i - j)* 2^j, {i, 0, 10}, {j, 0, i}] // Flatten (* Michael De Vlieger, May 22 2026 *)

Crossrefs

Sequence in context: A334700 A302799 A213059 * A126860 A010203 A129197

Adjacent sequences: A038325 A038326 A038327 * A038329 A038330 A038331

Keyword

nonn,tabl,easy

Author

N. J. A. Sloane

Status

approved