-1170

Appears in sequences

• Expansion of log(1+x)/cos(log(1+x)).at n=6A009424
• Expansion of (1-x)^(-1)/(1-x+2*x^2+x^3).at n=15A077877
• Expansion of 1/(1+x-x^2+2*x^3).at n=11A077972
• Expansion of exp( Sum_{n>=1} -3*sigma(2n)*x^n/n ) in powers of x.at n=53A185653
• Series expansion of the reciprocal of the generating function of A068432.at n=56A207814
• Irregular triangle read by rows: T(n,k) is the k-th generalized Eulerian number of order n and degree 2, for n >= 1 (the rows start at k=1).at n=29A211232
• Irregular triangle read by rows: T(n,k) is the k-th generalized Eulerian number of order n and degree 2, for n >= 1 (the rows start at k=1).at n=33A211232
• Expansion of psi(-x)^6 in powers of x where psi() is a Ramanujan theta function.at n=23A213791
• Expansion of a(q)^2 * b(q) in powers of q where a(), b() are cubic AGM theta functions.at n=12A231948
• Expansion of b(q)^3 - 3*c(q)^3 in powers of q where b(), c() are cubic AGM theta functions.at n=4A231961
• Expansion of b(q)^3 - (1/3)*c(q)^3 in powers of q where b(), c() are cubic AGM theta functions.at n=12A231962
• Expansion of chi(x^2) / phi(x) in powers of x where phi(), chi() are Ramanujan theta functions.at n=13A246712
• a(n) = Sum_{d divides n} (-1)^(d + n/d) * d^2.at n=39A321558
• Antidiagonal-sums of the array A377038(n,k) = n-th term of k-th differences of squarefree numbers (A005117).at n=11A377039