22293

Appears in sequences

• Numbers n with property that n^2 starts and ends with 49.at n=11A159815
• Numbers n with property that average digit of n^2 is s=7.at n=21A164773
• Expansion of g.f. x*(21 + 123*x + 129*x^2 + 4*x^3 + 129*x^4 + 123*x^5 + 21*x^6)/((1 - x)^3*(1 + x + x^2 + x^3)^2).at n=36A377166