221461

Properties

Appears in sequences

• Primes whose product of digits equals the number of digits times the sum of digits.at n=20A064155
• 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, 0, 0), (0, -1, 1), (0, 1, 1), (1, 0, 0), (1, 1, -1)}.at n=9A150586
• a(n) = 64*n^3 - 168*n^2 + 148*n - 43.at n=15A160250
• Prime numbersat n=19732