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A227481 Number of squares in row n of the triangle in A069011. 4
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

COMMENTS

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

LINKS

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

FORMULA

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

PROG

(Haskell)

a227481 = sum . map a010052 . a069011_row

CROSSREFS

Sequence in context: A105240 A327499 A327857 * A143654 A170981 A161096

Adjacent sequences:  A227478 A227479 A227480 * A227482 A227483 A227484

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Oct 11 2013

STATUS

approved

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Last modified August 3 08:53 EDT 2020. Contains 336197 sequences. (Running on oeis4.)