Wikimedi'Òc

Hex number 37.svg - Andrew Pertsev

Centered hexagonal = 1 + 6triangular.svg - Sarang

6eckszahl.png - GifTagger

Eśagonèl sentrè 7.png - Gloria sah

2d6 hexagon.svg - Cmglee

Hex number 37 with cube.svg - HB

Visual proof centered hexagonal numbers sum.svg - Cmglee

Centered-hexagonal-61.png - Qalle2

Centered-hexagonal-91.png - Qalle2

Centered-hexagonal-127.png - Qalle2