80410

Appears in sequences

• a(n) = (n+1)*(2*n+1)*(4*n+1).at n=21A079588
• Structured icosidodecahedral numbers.at n=21A100147
• Number of reduced words of length n in Coxeter group on 44 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.at n=3A162882
• a(0) = 0, and for n > 0, a(n) = A002956(n) - A000041(n).at n=27A181887
• Even octagonal pyramidal numbers (A002414).at n=20A218327
• Smallest k such that A073734(k) = n, where A073734 is the GCD of consecutive terms of the EKG sequence A064413.at n=44A382222