354831

Appears in sequences

• Expansion of (1-x)/(1+2*x+x^2+x^3).at n=22A078065
• a(1) = 1, a(2) = 2, a(3) = 3, a(n+3) = a(n) + a(n+1).at n=44A084338
• Diagonal sums of Riordan array (1-x-x^2,x(1-x)).at n=48A109266