Search: id:A077320
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%I A077320
%S A077320 2,3,6,5,10,15,7,14,21,28,11,22,33,44,55,13,26,39,52,65,78,17,34,51,68,
%T A077320 85,102,119,19,38,57,76,95,114,133,152,23,46,69,92,115,138,161,184,207,
%U A077320 29,58,87,116,145,174,203,232,261,290
%N A077320 Triangle in which n-th row contains n smallest multiples of the n-th 
               prime.
%C A077320 (0) A000040 gives (primes) initial terms of rows. (1) A033286 contains 
               the final terms of rows. (2) Sum of the n-th row = prime(n)* triangular 
               number(n), by definition. (3) a(triangular number(n) + 1) = prime(n+1), 
               by definition.
%Y A077320 Cf. A033286, A000040.
%Y A077320 Sequence in context: A064924 A055944 A073740 this_sequence A019565 A133477 
               A039653
%Y A077320 Adjacent sequences: A077317 A077318 A077319 this_sequence A077321 A077322 
               A077323
%K A077320 easy,nonn,tabl
%O A077320 1,1
%A A077320 Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 04 2002

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