A038253 - OEIS

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

(list; table; graph; refs; listen; history; text; 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.

LINKS

Table of n, a(n) for n=0..32.

CROSSREFS

Sequence in context: A318033 A326161 A354838 * A372918 A274681 A287350

Adjacent sequences: A038250 A038251 A038252 * A038254 A038255 A038256

KEYWORD

nonn,tabl,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved