111816

Appears in sequences

• Expansion of Jacobi theta constant (theta_2/2)^12.at n=14A014787
• Triangle read by rows: row n gives coefficients C(n,j) for a Sheffer sequence (binomial-type) with raising operator -x { 1 + W[ -exp(-2) * (2+D) ] } where W is the Lambert W multi-valued function.at n=46A135338
• Number of 3 X 3 semimagic squares with distinct positive values and magic sum n.at n=25A173547
• Numbers k such that Sum_{i=1..k} i^tau(i) == 0 (mod k), where tau(i) = A000005(i), the number of divisors of i.at n=13A229095