28520

Appears in sequences

• High temperature series for spin-1/2 Ising surface susceptibility on f.c.c. lattice.at n=3A003491
• Number of ordered quadruples of integers from [ 2,n ] with no global factor.at n=27A015638
• McKay-Thompson series of class 20F for Monster.at n=25A058555
• Numbers n such that phi(4n+1) = sigma(n).at n=9A067234
• Expansion of chi(-q)^5 / chi(-q^5) in powers of q where chi() is a Ramanujan theta function.at n=24A138521
• a(1)=0, a(n) = n^3 - a(n-1).at n=37A153026
• Expansion of chi(q)^5 / chi(q^5) in powers of q where chi() is a Ramanujan theta function.at n=24A225701
• Number of (n+1) X (3+1) 0..2 arrays with every 2 X 2 subblock diagonal maximum minus antidiagonal minimum unequal to its neighbors horizontally, vertically, diagonally and antidiagonally.at n=7A253464
• Expansion of (eta(q^4) * eta(q^5) / (eta(q) * eta(q^20)))^2 in powers of q.at n=25A298107
• Expansion of 1/q * chi(q) * chi(q^5) * chi(-q^20)^2 / chi(-q)^2 in powers of q where chi() is a Ramanujan theta function.at n=25A298116
• Number of minimum total dominating sets in the n X n king graph.at n=15A303156
• a(0) = 1; thereafter a(n) = 2*(6*n^2 - 3*n + 1).at n=49A386477