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%I #7 Mar 22 2024 18:36:48
%S 1,6,10,36,78,105,210,325,496,561,630,703,2145,2701,6105,6903,8385,
%T 23436,30381,41616,50721,67896,70125,81810,90525,210925,214185,230181,
%U 232903,254541,258121,290703,414505,454581,490545,498501,634501,674541,810901,852165
%N Triangular numbers with property that digits alternate in parity individually as well as in concatenation with previous terms.
%Y Cf. A068882.
%K base,nonn
%O 1,2
%A _Amarnath Murthy_, Mar 20 2002
%E Corrected and extended by _Sean A. Irvine_, Mar 22 2024
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