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 A022826 a(n) = a([ (n+1)/2 ]) + a([ (n+1)/3 ]) + . . . + a([ (n+1)/n ]). 4
 1, 1, 2, 3, 5, 6, 8, 10, 13, 14, 18, 19, 22, 26, 30, 31, 37, 38, 43, 47, 52, 53, 60, 63, 67, 72, 80, 81, 91, 92, 97, 103, 110, 115, 124, 125, 131, 136, 147, 148, 162, 163, 170, 181, 189, 190, 201, 204, 212, 220, 230, 231, 246, 253, 264, 271, 282, 283 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Ivan Neretin, Table of n, a(n) for n = 0..10000 MATHEMATICA Nest[Append[#, Total@#[[Quotient[2 + Length@#, Range[2, 1 + Length@#]]]]] &, {1}, 57] (* Ivan Neretin, Jan 25 2018 *) CROSSREFS Sequence in context: A140199 A072190 A177445 * A053035 A160009 A049862 Adjacent sequences:  A022823 A022824 A022825 * A022827 A022828 A022829 KEYWORD nonn AUTHOR STATUS approved

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Last modified December 8 21:59 EST 2021. Contains 349596 sequences. (Running on oeis4.)