A212671 A001037(n)!.
1, 2, 1, 2, 6, 720, 362880, 6402373705728000, 265252859812191058636308480000000, 710998587804863451854045647463724949736497978881168458687447040000000000000
Offset: 0
Keywords
Crossrefs
Cf. A001037.
This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.