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A033911
Numbers k such that s(k) + s(k+1) + ... + s(k+3) = t(k) + t(k+1) + ... + t(k+3).
4
1, 4, 16, 167, 65536
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OFFSET
1,2
COMMENTS
No other terms < 4293000000. -
Jud McCranie
, Jul 12 2000
a(6) > 10^11. -
Donovan Johnson
, Aug 15 2011
LINKS
Table of n, a(n) for n=1..5.
FORMULA
Here s(k) = sigma(k) - k, t(k) = |s(k) - k|.
CROSSREFS
Cf.
A001065
,
A033880
,
A033910
.
Sequence in context:
A367279
A318641
A005741
*
A130691
A308239
A012916
Adjacent sequences:
A033908
A033909
A033910
*
A033912
A033913
A033914
KEYWORD
nonn
,
more
AUTHOR
Naohiro Nomoto
EXTENSIONS
Offset corrected by
Donovan Johnson
, Aug 15 2011
STATUS
approved
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Last modified March 29 04:59 EDT 2024. Contains 371264 sequences. (Running on oeis4.)