121373

Appears in sequences

• Positive numbers y such that y^2 is of the form x^2+(x+343)^2 with integer x.at n=27A157246
• A self-"read and extend" sequence built following the three rules visible in the Comments section (a variation of A316765).at n=38A316909
• Expansion of Product_{k>=1} (1 + x^k * (k + x)).at n=24A336979