0,2

Table of n, a(n) for n=0..84.

a(n) = 6 for n >= 6.

(PARI) Vec((1 + x)*(1 + x + x^2)*(1 + x^2 - x^3) / (1 - x) + O(x^60)) \\ Colin Barker, Nov 23 2019

Row 3 of array in A329508.

Sequence in context: A202300 A244467 A200590 * A036265 A016663 A023993

Adjacent sequences: A329507 A329508 A329509 * A329511 A329512 A329513

nonn,easy

N. J. A. Sloane, Nov 22 2019

approved