76844

Appears in sequences

• Number of essentially different (not mappable to each other by reflection or rotation) arrangements of numbers 1 to n*(n+1)/2 in a triangle of n rows, in such a way that each row and each diagonal is increasing or decreasing.at n=5A064050
• Sum of the asymmetry degrees of all compositions of n into parts congruent to 1 mod 3.at n=29A276061