A143536 Triangle read by rows, T(n,k) = 1 if n is prime, 0 otherwise.

0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1

Offset: 1

Author

Gary W. Adamson, Aug 23 2008

Keywords

• nonn
• tabl

Comments

Row sums = A061397: (0, 2, 3, 0, 5, 0, 7,...).

Examples

			First few rows of the triangle =
0;
1, 1;
1, 1, 1;
0, 0, 0, 0;
1, 1, 1, 1, 1;
0, 0, 0, 0, 0, 0;
1, 1, 1, 1, 1, 1, 1;
...
		

Links

• Reinhard Zumkeller, Rows n = 1..125 of table, flattened

Crossrefs

Cf. A143535, A061397.

Cf. A010051.

Programs

Haskell

a143536 n k = a143536_tabl !! (n-1) !! (k-1)
a143536_row n = a143536_tabl !! (n-1)
a143536_tabl = zipWith take [1..] $ map repeat a010051_list
-- Reinhard Zumkeller, Mar 21 2014

Formula

Triangle read by rows, T(n,k) = 1 if n is prime, 0 otherwise. Mobius transform (A054525) of triangle A143535.