login
A147929
Number of permutations of floor(i*7/5), i=0..n-1, with all sums of two and three adjacent terms respectively unique.
0
1, 2, 6, 24, 74, 372, 1764, 9716, 58126, 350576, 2659814, 19804322, 164438708, 1469635802, 13218536446, 141134619260
OFFSET
1,2
CROSSREFS
Sequence in context: A147920 A147947 A147938 * A147921 A263712 A263698
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 17 2008
STATUS
approved