174590

Appears in sequences

• Number of Barlow packings with group P3(bar)m1(O) that repeat after 2n layers.at n=16A011952
• Number of degree-n irreducible polynomials over GF(2) with trace = 0 and subtrace = 0.at n=23A042980
• Number of binary Lyndon words of length n with trace 0 and subtrace 1 over Z_2.at n=23A074028
• a(n) = cpg(n, 3) + cpg(n, 4) + ... + cpg(n, n) where cpg(n, m) is the m-th n-th-order centered polygonal number.at n=32A257051