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A127716 a(n) = A127714(n, n*(n+1)/2). 2
1, 1, 3, 11, 72, 473, 3727, 39646, 412679, 4765654, 61015451, 937386045, 14126033578, 227901084348, 3941375013541, 72677938745613, 1517730017193292, 31249446089387086, 675658943143264102, 15356377683044270187 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
Triangle A127714 has (n+1)*(n+2)/2 terms in row n for n>=0. A127715 forms the rightmost border of triangle A127714.
LINKS
CROSSREFS
Sequence in context: A018192 A056665 A345030 * A035378 A258387 A350834
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Jan 24 2007
STATUS
approved

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)