-420

Appears in sequences

• Expansion of Product_{n>=1} (1 - x^n)^7.at n=22A000730
• Expansion of (Product_{j>=1} (1-(-x)^j) - 1)^6 in powers of x.at n=48A001484
• Expansion of (1-4*x)^(9/2).at n=3A002424
• McKay-Thompson series of class 6E for Monster (and, apart from signs, of class 12B).at n=22A007258
• Expansion of e.g.f. cosh(log(1+x)*cos(x)).at n=7A009133
• Expansion of e.g.f.: cosh(tanh(x)*log(1+x)).at n=7A009172
• Expansion of sinh(x)*cosh(log(1+x)).at n=6A009621
• Expansion of e.g.f.: cosh(arctan(x)*log(x+1))=1+12/4!*x^4-60/5!*x^5+90/6!*x^6-420/7!*x^7...at n=7A012405
• Expansion of e.g.f.: sec(arctan(x)*log(x+1))=1+12/4!*x^4-60/5!*x^5+90/6!*x^6-420/7!*x^7...at n=7A012406
• E.g.f.: sec(tanh(x)*log(x+1))=1+12/4!*x^4-60/5!*x^5+90/6!*x^6-420/7!*x^7...at n=7A012657
• Expansion of (eta(q) / eta(q^7))^4 in powers of q.at n=25A030181
• Shifts left and changes sign under Weigh transform.at n=16A038074
• Triangle of D-analogs of Stirling numbers of first kind.at n=15A039762
• Triangle of D-analogs of Stirling numbers of first kind, rows reversed.at n=20A039763
• McKay-Thompson series of class 6E for the Monster group with a(0) = 1.at n=22A045488
• McKay-Thompson series of class 7B for the Monster group.at n=25A052240
• Regard triangle of rencontres numbers (see A008290) as infinite matrix, compute inverse, read by rows.at n=48A055137
• McKay-Thompson series of class 18a for Monster.at n=65A058536
• Coefficient triangle of generalized Laguerre polynomials n!*L(n,2,x) (rising powers of x).at n=18A062139
• Coefficient array for certain polynomials N(5; k,x) (rising powers in x).at n=11A062986