A344280 Numbers that are both 10-gonal numbers (A001107) and 10-gonal pyramidal numbers (A007585).

0, 1, 175, 368050005576

Offset: 1

Author

Seiichi Manyama, May 17 2021

Keywords

• nonn
• more

Comments

Intersection of A001107 and A007585.

Links

• Numberphile, Cannon Ball Numbers.

Crossrefs

Cf. A001107, A007585, A027568, A344376, A344377.

Programs

PARI

for(k=0, 1e4, if(ispolygonal(m=k*(k+1)*(8*k-5)/6, 10), print1(m", ")))