-398

Appears in sequences

• q-expansion of modular form of weight 13/2: eta(8 tau)^12 * theta(tau).at n=37A002284
• McKay-Thompson series of class 46A for the Monster group.at n=67A058688
• Alternating sum sigma(1)-sigma(2)+sigma(3)-sigma(4)+...+((-1)^(n+1))*sigma(n).at n=41A068762
• The lowest order term in an expansion of Sum_{i=1..m} i^n*(i+1)! in a special factorial basis.at n=7A074052
• a(n+3) = 2a(n+2) - 3a(n+1) + 2a(n); a(0) = 1, a(1) = -1, a(2) = -2.at n=18A105225
• McKay-Thompson series of class 44b for the Monster group.at n=63A112184
• Table, read by rows, of coefficients of characteristic polynomials of almost prime matrices.at n=14A131175
• McKay-Thompson series of class 46A for the Monster group with a(0) = -1.at n=67A132322
• Expansions of the characteristic polynomials of certain matrices, see Mathematica code.at n=17A136449
• Extrapolation for (n + 1)-st prime made by fitting least-degree polynomial to first n primes.at n=13A140119
• Triangle read by rows: T(n, k) = 2^k - binomial(n+1, k+1) - ((2*k-n)/(k+1)) * binomial(n+1, k).at n=50A156864
• Numerator of Hermite(n, 9/19).at n=2A159647
• Numerator of Hermite(n, 11/21).at n=2A159761
• Expansion of f(-q) in powers of q where f() is a 3rd order mock theta function.at n=45A260460
• a(n) = Sum_{k=0..floor(n/3)} (-1)^k * binomial(n,3*k)^2.at n=6A307158
• n-th prime minus its ternary (base 3) reversal.at n=53A309574
• a(0) = 0, a(n) = n + a(n-1) if n is odd, a(n) = -3*a(n/2) if n is even.at n=43A318303
• G.f.: Sum_{n>=0} x^n * (x^n + i)^n / (1 + i*x^(n+1))^(n+1), where i^2 = -1.at n=66A323675
• G.f. A(x) satisfies: A(x) = A(x^2 - x^4)/x.at n=13A350475
• E.g.f. A(x) satisfies A(x) = 1/( 1 - sin(x * A(x)) / A(x) )^2.at n=5A381385