A014726 Squares of odd elements in Pascal triangle.

1, 1, 1, 1, 1, 1, 9, 9, 1, 1, 1, 1, 25, 25, 1, 1, 225, 225, 1, 1, 49, 441, 1225, 1225, 441, 49, 1, 1, 1, 1, 81, 81, 1, 1, 2025, 2025, 1, 1, 121, 3025, 27225, 27225, 3025, 121, 1, 1, 245025, 245025, 1, 1, 169, 511225, 1656369, 1656369

Offset: 0

Author

Mohammad K. Azarian

Keywords

• nonn
• tabf

Crossrefs

Cf. A014421.

Formula

a(n) = A014421(n)^2. - Sean A. Irvine, Nov 18 2018

Extensions

More terms from Sean A. Irvine, Nov 18 2018