87142

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), (-1, 0, -1), (0, 0, 1), (0, 1, 1), (1, -1, -1)}.at n=10A149870
• Heptagonal numbers which are products of four distinct primes.at n=11A351867