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Search: id:A087971
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A087971 Maximal term in Collatz-iteration started at -1+3^n. +0
1
2, 8, 40, 80, 9232, 9232, 3280, 6560, 29524, 59048, 1276936, 1276936, 6810136, 6810136, 21523360, 43046720, 1570824736, 1570824736, 1743392200, 3486784400, 17651846032, 31381059608, 141214768240, 282429536480, 9161049517720 (list; graph; listen)
OFFSET

1,1
FORMULA

a(n)=A025586[ -1+3^n]

CROSSREFS

Cf. A025586, A087701, A087972.

Sequence in context: A091073 A154132 A152458 this_sequence A127919 A074092 A003445

Adjacent sequences: A087968 A087969 A087970 this_sequence A087972 A087973 A087974

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Sep 24 2003

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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