29470

Appears in sequences

• 4-dimensional analog of centered polygonal numbers.at n=21A006325
• Expansion of (1+x)*(1+x^2)/((1-x)^2*(1+x+x^2)*(1-4*x)).at n=7A141844
• a(n) = n*(n+1)*(22*n-19)/6.at n=20A256716
• Weird untouchable numbers.at n=15A357326