A227481 Number of squares in row n of the triangle in A069011.

1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 2, 2, 1, 1, 1, 2, 2, 1, 1, 4, 1, 1, 1, 2, 1, 2, 1, 2, 1, 1, 2, 3, 1, 1, 1, 3, 1, 2, 1, 2, 3, 1, 1, 4, 1, 1, 1, 2, 1, 1, 2, 3, 1, 1, 1, 5, 1, 1, 3, 2, 1, 1, 1, 2, 1, 2, 1, 5, 1, 1, 2, 2, 2, 1, 1, 4, 1, 1, 1, 5, 1

Offset: 0

Author

Reinhard Zumkeller, Oct 11 2013

Keywords

• nonn

Comments

a(A074235(n)) = 1; a(A009023(n)) > 1.

Links

• Reinhard Zumkeller, Table of n, a(n) for n = 0..1000

Programs

Haskell

a227481 = sum . map a010052 . a069011_row

Formula

a(n) = sum(A010052(A069011(n,k)): k=0..n).