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A181706 Numbers of the form 2^(t-1)*(2^t-17), where 2^t-17 is prime. 1
1504, 30592, 8353792, 2146926592, 34357510144, 549746900992, 8796057370624, 140737345748992, 9223372000347553792, 2361183240850707054592, 9671406556879650002305024, 154742504910523000781012992 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

All entries are near-perfect numbers (A181595). The proof follows as in A181705, but this time the abundance is 16.

LINKS

Table of n, a(n) for n=1..12.

CROSSREFS

Cf. A059611, A181595, A181701, A000396, A181703, A181704, A181705.

Sequence in context: A237136 A183786 A181599 * A092725 A097034 A059464

Adjacent sequences:  A181703 A181704 A181705 * A181707 A181708 A181709

KEYWORD

nonn

AUTHOR

Vladimir Shevelev, Nov 06 2010

STATUS

approved

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Last modified April 16 12:25 EDT 2021. Contains 343037 sequences. (Running on oeis4.)