A038253 Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*11^j.

1, 5, 11, 25, 110, 121, 125, 825, 1815, 1331, 625, 5500, 18150, 26620, 14641, 3125, 34375, 151250, 332750, 366025, 161051, 15625, 206250, 1134375, 3327500, 5490375, 4831530, 1771561, 78125, 1203125, 7940625, 29115625, 64054375

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..32.

Crossrefs

Sequence in context: A318033 A326161 A354838 * A274681 A287350 A294091

Adjacent sequences: A038250 A038251 A038252 * A038254 A038255 A038256

Keyword

nonn,tabl,easy

Author

N. J. A. Sloane.

Status

approved