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), (-1, 1, -1), (0, 1, 0), (1, -1, -1), (1, 1, 1)}.
A150358
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), (-1, 1, -1), (0, 1, 0), (1, -1, -1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =23a(4) =91a(5) =350a(6) =1467a(7) =6050a(8) =26131a(9) =111442a(10) =490371a(11) =2138189a(12) =9535357a(13) =42254350a(14) =190257341a(15) =852508497a(16) =3867061863a(17) =17477584988a(18) =79758041419a(19) =363006781507
External references
- oeis: A150358