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Search: id:A071122
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A071122 a(n) = a(n-1) + sum of decimal digits of 2^n. +0
1
2, 6, 14, 21, 26, 36, 47, 60, 68, 75, 89, 108, 128, 150, 176, 201, 215, 234, 263, 294, 320, 345, 386, 423, 452, 492, 527, 570, 611, 648, 695, 753, 815, 876, 935, 999, 1055, 1122, 1193, 1254, 1304, 1350, 1406, 1464, 1526, 1596, 1664, 1737, 1802, 1878, 1958 (list; graph; listen)
OFFSET

1,1

MATHEMATICA

s=0; Do[s=s+Apply[Plus, IntegerDigits[2^n]]; Print[s], {n, 1, 128}]

CROSSREFS

Cf. A037123, A000788, A051351, A071317, A071121.

Sequence in context: A032383 A014775 A009218 this_sequence A101572 A080766 A074729

Adjacent sequences: A071119 A071120 A071121 this_sequence A071123 A071124 A071125

KEYWORD

base,easy,nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), May 27 2002

page 1

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Last modified July 6 17:22 EDT 2008. Contains 140988 sequences.


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