-285

Appears in sequences

• Expansion of log(1+x)*cosh(sinh(x)).at n=6A009413
• E.g.f. log(1+x)/cos(x).at n=6A009429
• Expansion of e.g.f.: cos(arcsin(x)*exp(x))=1-1/2!*x^2-6/3!*x^3-27/4!*x^4-100/5!*x^5...at n=6A012320
• Expansion of e.g.f.: arcsinh(sech(x)*log(x+1))=x-1/2!*x^2-2/3!*x^3+6/4!*x^4+33/5!*x^5...at n=6A012874
• n - reversal of base 20 digits of n (written in base 10).at n=36A055967
• n - reversal of base 20 digits of n (written in base 10).at n=57A055967
• McKay-Thompson series of class 12a for Monster.at n=5A058489
• Triangle M(k,n) read by rows: coefficients of Meixner polynomials.at n=30A094368
• Expansion of -3*x/(1 - 5*x + 3*x^2).at n=4A106732
• Inverse of renewal array for central trinomial numbers.at n=78A111963
• Row sums of triangle A112707 (partial sums of Catalan numbers multiplied by powers of negative numbers).at n=7A112708
• Triangle, read by rows, equal to the matrix inverse of P=A113370.at n=42A114156
• Semiprime(n)*semiprime(n+3) - semiprime(n+1)*semiprime(n+2), where semiprime(n) is the n-th semiprime.at n=29A118780
• Triangle read by rows: a(n,m)=(2*n-1)*(n-m)*(n+m+1)/2, where n is the column and m the row index.at n=53A120476
• Triangle, real terms extracted from squares of paired terms in arithmetic sequences.at n=49A121164
• Matrix inverse of triangle A122178, where A122178(n,k) = C( n*(n+1)/2 + n-k - 1, n-k) for n>=k>=0.at n=16A121438
• Matrix inverse of triangle A121335, where A121335(n,k) = C( n*(n+1)/2 + n-k + 1, n-k) for n>=k>=0.at n=31A121440
• Q(n,6), where Q(m,k) is defined in A127080 and A127137.at n=11A127148
• Expansion of q^(-1/8)* eta(q)^5* eta(q^2)^3/ eta(q^4)^2 in powers of q.at n=36A128712
• a(n) = A062295(n) - A133743(n).at n=43A133744