A038338 - OEIS

A038338

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

1, 12, 12, 144, 288, 144, 1728, 5184, 5184, 1728, 20736, 82944, 124416, 82944, 20736, 248832, 1244160, 2488320, 2488320, 1244160, 248832, 2985984, 17915904, 44789760, 59719680, 44789760, 17915904, 2985984, 35831808, 250822656

(list; table; graph; refs; listen; history; text; internal format)

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..10000

MATHEMATICA

Flatten[Table[Binomial[i, j]12^(i-j) 12^j, {i, 0, 10}, {j, 0, i}]] (* Harvey P. Dale, Dec 18 2012 *)

CROSSREFS

Sequence in context: A067123 A178341 A165833 * A221796 A222298 A122253

Adjacent sequences: A038335 A038336 A038337 * A038339 A038340 A038341

KEYWORD

nonn,tabl,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved