A079312 a(n) = 4 * A079137(n).

0, 0, 32, 0, 328, 2976, 25512, 124352, 758752, 4852448, 26735408, 145945312, 805129880, 4334341216, 22824469832, 119276925152, 617722010896, 3163151197504, 16059782780784, 80965219241952, 405344545960912

Offset: 1

Author

Alexander D. Healy, Feb 11 2003

Keywords

• nonn

Comments

See A079137, which is the main entry for this problem.

Crossrefs

Equals 4*A079137(n). Cf. A070030.

Extensions

Incorrect description removed by Andrew Howroyd, Oct 12 2019