A038217 Triangle whose (i,j)-th entry is binomial(i,j)*2^(i-j)*11^j.

1, 2, 11, 4, 44, 121, 8, 132, 726, 1331, 16, 352, 2904, 10648, 14641, 32, 880, 9680, 53240, 146410, 161051, 64, 2112, 29040, 212960, 878460, 1932612, 1771561, 128, 4928, 81312, 745360, 4099480, 13528284, 24801854, 19487171, 256, 11264

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..37.

Crossrefs

Row sums: A001022.

Sequence in context: A235460 A082264 A070532 * A152985 A257112 A077272

Adjacent sequences: A038214 A038215 A038216 * A038218 A038219 A038220

Keyword

nonn,tabl,easy

Author

N. J. A. Sloane.

Status

approved