|
| |
|
|
A038210
|
|
Triangle whose (i,j)-th entry is binomial(i,j)*2^(i-j)*4^j.
|
|
1
| |
|
|
1, 2, 4, 4, 16, 16, 8, 48, 96, 64, 16, 128, 384, 512, 256, 32, 320, 1280, 2560, 2560, 1024, 64, 768, 3840, 10240, 15360, 12288, 4096, 128, 1792, 10752, 35840, 71680, 86016, 57344, 16384, 256, 4096, 28672, 114688, 286720, 458752, 458752, 262144
(list; table; graph; refs; listen; history; 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.
|
|
|
MATHEMATICA
| Flatten[Table[Binomial[i, j]2^(i-j) 4^j, {i, 0, 10}, {j, 0, i}]] (* From Harvey P. Dale, Nov 22 2011 *)
|
|
|
CROSSREFS
| Sequence in context: A079102 A071337 A087481 * A176739 A154919 A019230
Adjacent sequences: A038207 A038208 A038209 * A038211 A038212 A038213
|
|
|
KEYWORD
| nonn,tabl,easy
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
|
| |
|
|
