-718

Appears in sequences

• Imaginary part of (1+2i)^n.at n=9A006496
• Weight 5 level 11 cusp form with complex multiplication by Q(sqrt(11)) and trivial character.at n=52A065099
• Sequence is {a(1,n)}, where a(m,n) is defined at sequence A111518.at n=9A111519
• Triangle, read by rows, where column 0 is [1,-1,-2,-3,...,-n,...] and column k+1 is generated by the binomial transform of column k preceded by a zero (column k includes the k zeros above the main diagonal).at n=30A117334
• Real part of (2 + i)^n, where i = sqrt(-1).at n=9A139011
• a(n) = -2*n^2 + 12*n - 14.at n=21A147973
• Expansion of a(q) * f(-q)^4 where f() is a Ramanujan theta function and a() is a cubic AGM function.at n=61A152243
• Triangle read by rows: t(n,k)= k! + (1-k!)*(n - k)!, 0<=k<=n.at n=38A155454
• Triangle read by rows: t(n,k)= k! + (1-k!)*(n - k)!, 0<=k<=n.at n=42A155454
• Numerator of Hermite(n, 1/19).at n=2A159564