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Search: id:A076508
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A076508 3 people at a party are saying Hello to each other. Person " says Hello Hello. Person 3 counts the times Hello has been said and says Hello thrice that number. Person 1 says Hello equal to the sum of Hello's and then it is Person 2 again. This is the total of Hello's said. +0
2
2, 8, 16, 48, 192, 384, 1152, 4608, 9216, 27648, 110592, 221184, 663552, 2654208, 5308416, 15925248, 63700992, 127401984, 382205952, 1528823808, 3057647616, 9172942848, 36691771392, 73383542784, 220150628352, 880602513408 (list; graph; listen)
OFFSET

1,1

PROGRAM

(PARI) mod 3(n)=if (i%3==0, 3, i%3) s=2; for (i=3, 30, print1(s, ", "); s=s+s*mod 3(i))

CROSSREFS

Cf. A076507.

Sequence in context: A077666 A096227 A134353 this_sequence A162584 A100243 A026523

Adjacent sequences: A076505 A076506 A076507 this_sequence A076509 A076510 A076511

KEYWORD

nonn

AUTHOR

Jon Perry (perry(AT)globalnet.co.uk), Oct 15 2002

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.


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