ACTA issues

## Some equations concerning the sums of powers of integers

László Imre Szabó

Acta Sci. Math. (Szeged) 67:3-4(2001), 501-503
2799/2009

 Abstract. We prove that the identity \$(1+2+\cdots +n)^2=1^3+2^3+\cdots +n^3\$ is not a coincidence but the first and simplest one of a family of multiplicative formulas involving the sums of powers of integers. AMS Subject Classification (1991): 11B75, 11B68 Keyword(s): 11B75, 11B68 Received July 18, 2000. (Registered under 2799/2009.)