-77

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=47A000036
• Expansion of cos(log(1 + sin(x))).at n=7A009019
• Zeroth row of infinite Latin square heading to +oo.at n=55A019570
• Expansion of Product_{m>=1} (1+m*q^m)^-11.at n=3A022703
• Expansion of eta(16z)^4*eta(4z)^2.at n=60A034952
• Matrix 7th power of inverse partition triangle A038498.at n=10A050310
• Generalized Stirling number triangle of first kind.at n=34A051379
• First differences of chowla(n).at n=65A053246
• Coefficients of the '10th-order' mock theta function chi(q).at n=52A053284
• a(n) = Sum_{d|2n+1} phi(d)*mu(d).at n=39A054586
• Matrix inverse of triangle A055290(n+1,k).at n=45A055300
• Column 2 of triangle A055300.at n=9A055301
• n - reversal of base 12 digits of n (written in base 10).at n=46A055963
• n - reversal of base 12 digits of n (written in base 10).at n=33A055963
• n - reversal of base 12 digits of n (written in base 10).at n=20A055963
• n - reversal of base 12 digits of n (written in base 10).at n=59A055963
• "Real rabbits": a(n) = Re(c(n)) where complex c(n) = a(n) + i*b(n) and c(0) = i, c(1) = -i, c(n) = c(n-1) + i*c(n-2).at n=14A058184
• a(n) = -(n + 1)*(2*n^2 + n - 12)/6.at n=6A058372
• Coefficients of polynomials ( (1 -x +sqrt(x))^n + (1 -x -sqrt(x))^n )/2.at n=32A061176
• Alternating sum sigma(1)-sigma(2)+sigma(3)-sigma(4)+...+((-1)^(n+1))*sigma(n).at n=17A068762