login
A134195
Antidiagonal sums of square array A126885.
1
1, 3, 7, 15, 32, 72, 178, 494, 1543, 5373, 20581, 85653, 383494, 1833250, 9301792, 49857540, 281193501, 1663183383, 10286884195, 66365330811, 445598473612, 3107611606908, 22470529228910, 168190079241210, 1301213084182483, 10391369994732593, 85553299734530113
OFFSET
0,2
COMMENTS
Conjecture: partial sums of A104879. - Sean A. Irvine, Jul 14 2022
EXAMPLE
a(4) = 1 + 5 + 11 + 10 + 5 = 32.
PROG
(Maxima)
T(n, k) := if k = 1 then 1 else n*T(n, k - 1) + k$ /* A126885 */
a(n) := sum(T(n - k + 1, k), k, 1, n + 1)$
makelist(a(n), n, 0, 50); /* Franck Maminirina Ramaharo, Jan 26 2019 */
CROSSREFS
Cf. A126885.
Sequence in context: A137166 A101890 A307573 * A365527 A079444 A269560
KEYWORD
nonn,easy
AUTHOR
Gary W. Adamson, Oct 12 2007
STATUS
approved