A285204 Row lengths of triangle A285202.

1, 3, 5, 5, 7, 5, 7, 5, 7, 5, 9, 5, 7, 5, 7, 5, 9, 5, 7, 5, 7, 5, 9, 5, 7, 5, 7, 5, 9, 5, 7, 5, 7, 5, 11, 5, 7, 5, 7, 5, 9, 5, 7, 5, 7, 5, 9, 5, 7, 5, 7, 5, 9, 5, 7, 5, 7, 5, 11, 5, 7, 5, 7, 5, 9, 5, 7, 5, 7, 5, 9, 5, 7, 5, 7, 5, 9, 5, 7, 5, 7, 5, 11, 5, 7, 5, 7, 5, 9, 5, 7

Offset: 0

Author

N. J. A. Sloane, May 03 2017

Keywords

• nonn

Crossrefs

Cf. A285200-A285203.

Formula

a(n) = 2*A285203(n)-1 for n>0.