-225

Appears in sequences

• Triangle read by rows of Stirling numbers of first kind, s(n,k), n >= 1, 1 <= k <= n.at n=17A008275
• Triangle of Stirling numbers of first kind, s(n, n-k+1), n >= 1, 1 <= k <= n. Also triangle T(n,k) giving coefficients in expansion of n!*binomial(x,n)/x in powers of x.at n=18A008276
• Expansion of e.g.f. log(1+x)*cosh(x).at n=6A009416
• Expansion of e.g.f.: log(1+x)/cos(sin(x)).at n=6A009425
• Expansion of e.g.f: log(1+x)/cosh(tanh(x)).at n=6A009434
• arctan(sin(arctanh(x)))=x-1/3!*x^3+9/5!*x^5-225/7!*x^7+3345/9!*x^9...at n=3A012054
• exp(arcsinh(arcsinh(x))) = 1+x+1/2!*x^2-1/3!*x^3-7/4!*x^4+9/5!*x^5...at n=7A012252
• arcsinh(cos(x)*log(x+1))=x-1/2!*x^2-2/3!*x^3+6/4!*x^4+13/5!*x^5...at n=6A012470
• sech(arctanh(x)*cos(x))=1-1/2!*x^2+9/4!*x^4-225/6!*x^6+6993/8!*x^8...at n=3A012749
• sech(sec(x)*arctanh(x))=1-1/2!*x^2-15/4!*x^4-225/6!*x^6+3297/8!*x^8...at n=3A012852
• Triangle of Stirling numbers of first kind, s(n,k), n >= 0, 0 <= k <= n.at n=24A048994
• a(n) = floor(Sum_{k=0..n} tan(k)).at n=17A051508
• a(n) = floor(Sum_{k=0..n} tan(k)).at n=26A051508
• a(n) = round(Sum_{k=0..n} tan(k)).at n=21A051509
• a(n) = round(Sum_{k=0..n} tan(k)).at n=22A051509
• a(n) = round(Sum_{k=0..n} tan(k)).at n=17A051509
• a(n) = round(Sum_{k=0..n} tan(k)).at n=26A051509
• a(n) = ceiling(Sum_{k=0..n} tan(k)).at n=22A051510
• a(n) = ceiling(Sum_{k=0..n} tan(k)).at n=21A051510
• a(n) = ceiling(Sum_{k=0..n} tan(k)).at n=19A051510