A038276 Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*10^j.

1, 7, 10, 49, 140, 100, 343, 1470, 2100, 1000, 2401, 13720, 29400, 28000, 10000, 16807, 120050, 343000, 490000, 350000, 100000, 117649, 1008420, 3601500, 6860000, 7350000, 4200000, 1000000, 823543, 8235430, 35294700, 84035000

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

Table of n, a(n) for n=0..31.

Crossrefs

Sequence in context: A013493 A166661 A025632 * A249952 A187999 A097187

Adjacent sequences: A038273 A038274 A038275 * A038277 A038278 A038279

Keyword

nonn,tabl,easy

Author

N. J. A. Sloane.

Status

approved