981540

Appears in sequences

• Denominators of continued fraction convergents to sqrt(142).at n=11A041261
• Numbers k that, when expressed in base 4 and then interpreted in base 7, give a multiple of k.at n=13A062922
• Number of n X 7 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=19A208378
• Integers z such that there exist two integers 0<x<=y<=z such that psi(x) = psi(y) = psi(z) = x + y + z.at n=31A386933