A106484 Iterated Stella Octangula numbers A007588.

2, 14, 5474, 328053267374, 70609493887317824553444331216711874, 704075595895578790602913140874091028795793004193695613020210569466609876113017694526357948165550233559374

Offset: 0

Author

Jonathan Vos Post, May 03 2005

Keywords

• easy
• nonn

Links

• Eric Weisstein's World of Mathematics, Stella Octangula Number..

Crossrefs

Cf. A007588, A106482, A106483.

Formula

a(0) = 2; a(n+1) = a(n)*(2*a(n)^2 - 1) = A007588(a(n)).