66543

Appears in sequences

• E.g.f. exp(sum_{d|M} (exp(d*x)-1)/d), M=8.at n=5A141005
• The first of thirteen consecutive positive integers the sum of the squares of which is equal to the sum of the squares of seven consecutive positive integers.at n=2A262077
• Number of distinct characteristic polynomials for 2 X 2 matrices with entries from {0, 1, ..., n}.at n=34A366448