1,1
a(12) = 12 +24 +...+84 +96= 432.
Sequence in context: A037218 A070818 A129536 this_sequence A033365 A165248 A085518
Adjacent sequences: A108906 A108907 A108908 this_sequence A108910 A108911 A108912
base,easy,nonn
Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jul 19 2005
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