|
Search: id:A135613
|
|
| |
|
| 3, 7, 3, 1, 8, 1, 5, 2, 2, 6, 1, 1, 6, 5, 1, 1, 4, 2, 1, 2, 4, 3, 2, 4, 4, 4, 8, 5, 5, 5, 7, 1, 1, 4, 8, 6, 1, 4, 9
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
LINKS
|
Landon Curt Noll, Mersenne Prime Digits and Names.
|
|
EXAMPLE
|
a(4)=1 because the 4th Mersenne prime A000668(4) is 127 and the initial digit of 127 is 1.
|
|
MATHEMATICA
|
lst = {* the list of terms in A000043 *}; f[n_] := Block[{pn = 2^n - 1}, Quotient[pn, 10^Floor[ Log[10, pn]] ]]; f@# & /@ lst - Robert G. Wilson v, (rgwv(AT)rgwv.com), Apr 01 2008
|
|
CROSSREFS
|
Cf. A000030, A000668, A077648, A080172.
Sequence in context: A153027 A161127 A021272 this_sequence A019973 A010623 A066065
Adjacent sequences: A135610 A135611 A135612 this_sequence A135614 A135615 A135616
|
|
KEYWORD
|
nonn,base
|
|
AUTHOR
|
Omar E. Pol (info(AT)polprimos.com), Mar 01 2008
|
|
EXTENSIONS
|
More terms from Robert G. Wilson v, (rgwv(AT)rgwv.com), Apr 01 2008
|
|
|
Search completed in 0.002 seconds
|
