OFFSET
1,1
COMMENTS
In the table below, ties (i.e., multiple solutions with the same value of k) are identified with asterisks. (Two solutions correspond to k=500, and three to k=8100.)
EXAMPLE
n k a b x y a*b = a(n)
-- ---- ---- ---- -- ---- ----------
1 64 32 32 8 8 1024
2 72 36 36 6 12 1296
3 81 27 54 9 9 1458
4 100 50 50 5 20 2500
5 108 36 72 6 18 2592
6 125 50 75 5 25 3750
7 128 32 96 8 16 3072
8 216 36 180 12 18 6480
9 225 75 150 5 45 11250
10 288 72 216 6 48 15552
11 324 54 270 9 36 14580
12 *500* 150 350 5 100 52500
13 *500* 50 450 20 25 22500
14 576 96 480 8 72 46080
15 864 72 792 18 48 57024
16 972 216 756 6 162 163296
17 1125 75 1050 25 45 78750
18 1152 96 1056 16 72 101376
19 1225 350 875 5 245 306250
20 1800 180 1620 12 150 291600
21 2025 270 1755 9 225 473850
22 2700 180 2520 18 150 453600
23 3125 875 2250 5 625 1968750
24 3200 480 2720 8 400 1305600
25 3528 756 2772 6 588 2095632
26 4500 150 4350 45 100 652500
27 7776 216 7560 48 162 1632960
28 *8100* 2250 5850 5 1620 13162500
29 *8100* 450 7650 20 405 3442500
30 *8100* 270 7830 36 225 2114100
CROSSREFS
KEYWORD
nonn
AUTHOR
Naohiro Nomoto, Sep 24 2000
EXTENSIONS
Edited by Jon E. Schoenfield, May 02 2021
More terms from Jinyuan Wang, May 02 2021
STATUS
approved