0,1
5^2=25; 15^2=(1*2)25=225; 25^2=(2*3)25=625;35^2=(3*4)25=1225; 45^2 =(4*5)25=2025; 55^2=(5*6)25=3025; 65^2=(6*7)25=4225; etc. [Vincenzo Librandi, Aug 27 2011]
Vincenzo Librandi, Table of n, a(n) for n = 0..10000
(MAGMA) [(10*n+5)^2: n in [0..35]]; // Vincenzo Librandi, Aug 02 2011
Sequence in context: A045785 A030484 A038692 * A135509 A065779 A095241
Adjacent sequences: A017327 A017328 A017329 * A017331 A017332 A017333
nonn,easy
N. J. A. Sloane (njas(AT)research.att.com).