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]11^(i-j) 7^j, {i, 0, 10}, {j, 0, i}]] (* Harvey P. Dale, Apr 19 2015 *)
CROSSREFS
KEYWORD
AUTHOR
STATUS
approved