A331754 A290131/2.

0, 1, 6, 20, 48, 102, 184, 317, 506, 772, 1118, 1593, 2180, 2949, 3882, 5011, 6356, 8013, 9922, 12224, 14854, 17878, 21302, 25301, 29748, 34825, 40470, 46800, 53770, 61658, 70214, 79821, 90316, 101809, 114278, 127911, 142540, 158663, 176010, 194749

Offset: 1

Author

N. J. A. Sloane, Feb 02 2020

Keywords

• nonn

Crossrefs

Cf. A290131.