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%I #6 Mar 24 2022 12:48:27
%S 0,1,8,1160,20501,30401,42960,90480,131880,168033,181056,208560,
%T 238008,269400,302736,338016,375240,414408,455520,520833,590520,
%U 690240,743016,770133,854400,913008,943041,1004565,1036056,1068033,1100496,1235208
%N Octagonal numbers for which both the sum and the product of the digits is also an octagonal number.
%e 42960 is in the sequence because (1) it is a octagonal number, the sum of its digits 4+2+9+6+0 = 21 is an octagonal number and (3) the product of its digits 4*2*9*6*0 = 0 is also a octagonal number.
%Y Cf. A000567.
%K base,nonn
%O 0,3
%A Luc Stevens (lms022(AT)yahoo.com), Apr 17 2006
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