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A274652
Sum of n-th antidiagonal of the square array A274528.
2
0, 3, 6, 12, 13, 25, 36, 43, 57, 67, 100, 134, 115, 163, 153, 186, 185, 248, 277, 258, 306, 366, 370, 381, 528, 471, 607, 662, 610, 706, 778, 760, 783, 782, 950, 970, 975, 1194, 1206, 1175, 1301, 1393, 1438, 1261, 1584, 1549, 1592, 1645, 1776, 1783, 2010, 1956, 1953, 2353, 2441, 2258, 2468, 2342, 2635, 2663
OFFSET
0,2
FORMULA
a(n) = A274530(n+1) - n - 1.
CROSSREFS
KEYWORD
nonn
AUTHOR
Omar E. Pol, Jul 01 2016
STATUS
approved