A114702 Number of binary vectors (x_1,...x_(n-1)) satisfying Sum_{i=1..n-1} (-1)^i*i*x_i = 0 (mod n).

1, 1, 2, 3, 6, 9, 16, 28, 52, 93, 172, 315, 586, 1091, 2048, 3855, 7286, 13797, 26216, 49929, 95326, 182361, 349536, 671088, 1290556, 2485504, 4793492, 9256395, 17895736, 34636833, 67108864, 130150493, 252645136, 490853403, 954437292

Offset: 2

Author

Vladeta Jovovic, Feb 18 2006

Keywords

• easy
• nonn

Links

• Myrto Kallipoliti, Robin Sulzgruber, and Eleni Tzanaki, Patterns in Shi tableaux and Dyck paths, arXiv:2006.06949 [math.CO], 2020.

Formula

a(2*n-1) = A000048(2*n-1), a(2*n) = A000016(2*n).

Extensions

More terms from R. J. Mathar, Jan 24 2008