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A022949 a(n) = a(n-1) + c(n) for n >= 3, a( ) increasing, given a(1)=1 a(2)=6; where c( ) is complement of a( ). 2
1, 6, 10, 15, 22, 30, 39, 50, 62, 75, 89, 105, 122, 140, 159, 179, 200, 223, 247, 272, 298, 325, 353, 382, 413, 445, 478, 512, 547, 583, 620, 658, 698, 739, 781, 824, 868, 913, 959, 1006, 1054, 1103, 1154, 1206, 1259, 1313, 1368, 1424, 1481, 1539 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Ivan Neretin, Table of n, a(n) for n = 1..10000

MATHEMATICA

Fold[Append[#1, #1[[-1]] + Complement[Range[Max@#1 + 3], #1][[#2]]] &, {1, 6}, Range[3, 50]] (* Ivan Neretin, Apr 05 2016 *)

CROSSREFS

Cf. A005228 and references therein.

Sequence in context: A315283 A099981 A315284 * A049694 A285766 A157344

Adjacent sequences:  A022946 A022947 A022948 * A022950 A022951 A022952

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified November 28 12:04 EST 2021. Contains 349401 sequences. (Running on oeis4.)