A048421 - OEIS

%I #9 Oct 11 2019 04:08:18

%S 3249,81225,225625,364816,2079364,4950625,39601849,44156025,84180625,

%T 92294449,116964225,267289801,341991049,643890625,1212780625,

%U 1445900625,1699500625,2307361225,2924105625,2998438564,3204126025

%N Squares composed of two '1-digit' overlapping subsquares.

%C Subsquares with leading and/or trailing zeros not included. Subsquares at least 2 digits long.

%e 81225 = 285^2 = 8{1}225 = 81 and 1225 = 9^2 and 35^2.

%Y Cf. A000290, A048422.

%K nonn,base

%O 1,1

%A _Patrick De Geest_, Apr 15 1999