-66

Appears in sequences

• Let A(n) = #{(i,j): i^2 + j^2 <= n}, V(n) = Pi*n, P(n) = A(n) - V(n); A000099 gives values of n where |P(n)| sets a new record; sequence gives closest integer to P(A000099(n)).at n=43A000036
• Let A(n) = #{(i,j): i^2 + j^2 <= n}, V(n) = Pi*n, P(n) = A(n) - V(n); A000099 gives values of n where |P(n)| sets a new record; sequence gives closest integer to P(A000099(n)).at n=42A000036
• Expansion of (Product_{j>=1} (1-(-x)^j) - 1)^6 in powers of x.at n=20A001484
• q-expansion of modular form of weight 13/2: eta(8 tau)^12 * theta(tau).at n=29A002284
• Coefficients of modular function G_2(tau).at n=18A005760
• From fundamental unit of Z[ (-n)^{1/4} ].at n=7A006831
• McKay-Thompson series of class 6c for Monster.at n=4A007262
• Reversion of o.g.f. for Bell numbers (A000110) omitting a(0)=1.at n=7A007311
• Expansion of log(1 + sinh(x)/exp(x)).at n=4A009362
• Stirling numbers of first kind S1(12,n).at n=10A011522
• Expansion of e.g.f. log(arcsin(x) + exp(x)).at n=4A012911
• Zeroth row of infinite Latin square heading to -oo.at n=44A019585
• Expansion of Product_{m>=1} (1 - m*q^m)^3.at n=8A022663
• Expansion of Product_{m>=1} (1 - m*q^m)^6.at n=5A022666
• Dirichlet inverse of Euler totient function (A000010).at n=66A023900
• Derivative of log of A002126.at n=13A023901
• 6th differences of primes.at n=48A036267
• 7th differences of primes.at n=14A036268
• Product_{k>=1} ((1 + x^k)^a(k)) = 1 + 4x.at n=3A038069
• a(n) = Sum_{ d divides n, d==1 mod 4} d - Sum_{ d divides n, d==3 mod 4} d.at n=66A050457