-72

Appears in sequences

• a(1) = 0, a(2) = 0; for n > 2, a(n) - a(n-3) - a(n-5) - ... - a(n-p) = n if n is prime, otherwise = 0, where p = largest prime < n.at n=15A002123
• Expansion of (1-4*x)^(9/2).at n=7A002424
• Low temperature energy function for square lattice.at n=4A002909
• Power series expansion of the Rogers-Ramanujan continued fraction 1+x/(1+x^2/(1+x^3/(1+x^4/(1+...)))).at n=53A003823
• Coefficients in expansion of Eisenstein series E_2 (also called E_1 or G_2).at n=2A006352
• McKay-Thompson series of class 6E for Monster (and, apart from signs, of class 12B).at n=11A007258
• Shifts left when Moebius transformation applied twice.at n=26A007551
• Triangle of Lah numbers.at n=43A008297
• Triangle of coefficients of Chebyshev polynomials T_n(x).at n=43A008310
• Expansion of e.g.f.: cosh(x)/exp(tan(x)).at n=5A009186
• Expansion of log(1+sin(sinh(x))).at n=6A009328
• Expansion of log(1+sin(tanh(x))).at n=6A009330
• Expansion of log(1+sinh(sin(x))).at n=6A009346
• Expansion of e.g.f.: log(1+tan(tanh(x))).at n=6A009367
• Expansion of log(1+tanh(sin(x))).at n=6A009384
• Expansion of log(1+tanh(tan(x))).at n=6A009386
• Expansion of e.g.f. log(1+tanh(x))/exp(x).at n=8A009393
• Expansion of the e.g.f. sin(x)*(1+x).at n=72A009531
• log(cos(tanh(x)))=-1/2!*x^2+6/4!*x^4-72/6!*x^6+1456/8!*x^8...at n=2A012242
• Expansion of Product_{m>=1} (1 - m*q^m)^2.at n=9A022662