-91

Appears in sequences

• Expansion of (eta(q) * eta(q^7))^3 in powers of q.at n=63A002656
• Stirling numbers of first kind S1(14,n).at n=12A011524
• Expansion of Product_{m>=1} (1 - m*q^m)^3.at n=9A022663
• Numerators of poly-Bernoulli numbers B_n^(k) with k=2.at n=15A027643
• Expansion of 1/(1 - 3*x + 4*x^2).at n=6A049072
• Generalized Stirling number triangle of first kind.at n=34A051523
• Consider real quadratic fields of ERD-type with class groups of exponent 2 and discriminants of the form D = r^2*k^2+4k, k odd; sequence gives values of k.at n=53A051998
• Matrix inverse of triangle A055363(n+2,k).at n=51A055370
• a(n) = n^2 - primefloor(n)*primeceiling(n).at n=22A056139
• a(n) = n^2 - previousprime(n)*nextprime(n), for n>2.at n=21A056140
• McKay-Thompson series of class 20e for Monster.at n=42A058560
• Exponential Riordan array (sech(x), tanh(x)).at n=33A060081
• Least entry in character table of the symmetric group S_n.at n=9A061220
• Determinant of the n X n matrix whose element (i,j) equals |i-j| (Mod 3).at n=31A071768
• Expansion of (1-x)^(-1)/(1+x-2*x^2-x^3).at n=9A077897
• Triangle, read by rows, where the n-th row lists the (2n+1) coefficients of (1 + x - 2*x^2)^n.at n=53A084612
• Triangle, read by rows, where the n-th row lists the (2*n+1) coefficients of (1 + x - 3*x^2)^n.at n=52A084614
• Triangle, read by rows, where the n-th row lists the (2*n+1) coefficients of (1 + x - 3*x^2)^n.at n=53A084614
• a[1] = 1, a[2] = 2, a[3] = 2; a[n] = 3*a[abs[a[n-2]]] - 3*a[n-abs[a[n-2]]] + a[n-3].at n=95A087775
• Alternating sum of squares to n.at n=12A089594