A156271 - OEIS

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A156271

a(n)=sum(k=1,n,A000002(A078649(k)))

0

2, 3, 5, 7, 8, 9, 11, 12, 14, 15, 16, 18, 20, 21, 23, 24, 25, 27, 29, 30, 32, 34, 35, 36, 38, 39, 41, 43, 44, 46, 48, 49, 50, 52, 53, 55, 57, 58, 59, 61, 62, 63, 65, 66, 67, 69, 71, 72, 74, 75, 77, 79, 80, 81, 83, 85, 86, 88, 89, 90, 92, 93, 95, 96, 97, 99, 100, 102, 104, 105

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..70.

CROSSREFS

Sequence in context: A171944 A134623 A228373 * A186513 A350799 A246438

Adjacent sequences: A156268 A156269 A156270 * A156272 A156273 A156274

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Feb 07 2009

STATUS

approved