28323936

Appears in sequences

• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (0, 0, -1), (0, 1, -1), (0, 1, 1), (1, 0, 0)}.at n=13A150178
• Expansion of (1/x) * Series_Reversion( x*(1+x+x^3)/(1+x)^4 ).at n=11A366118