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A280760
Index of first occurrence of n in A280055.
1
1, 2, 5, 16, 58, 440, 17281, 16049141, 8010046523646
OFFSET
1,2
FORMULA
a(n) = a(n-1) + {sum of members of A008578 <= a(n-1)}. - Charlie Neder, Jun 14 2019
CROSSREFS
Sequence in context: A019448 A243326 A185143 * A350717 A000753 A346813
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Jan 08 2017
EXTENSIONS
a(7)-a(9) from Lars Blomberg, Jan 11 2017
STATUS
approved