134218753

Appears in sequences

• a(0) = 1; for n>0, a(n) is the smallest positive integer that has not previously occurred such that a(n-1)^2 + n^2 + a(n) is a square.at n=30A347595
• Numbers k such that the k-th composition in standard order is a triple (w,x,y) such that 2w = 3x + 4y.at n=19A357489