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A183533 An Ulam-type sequence: a(n) = n if n<=10; for n>10, a(n) = least number > a(n-1) which is a unique sum of 10 distinct earlier terms. 8
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 55, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 145, 163, 190, 217, 235, 271, 280, 1740, 1741, 1744, 1745, 1799, 1804, 1805, 1824, 1825, 1831, 1859, 1869, 1913, 1914, 3554, 10521, 10522, 10526, 10527, 10537, 10563, 10564 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

An Ulam-type sequence - see A002858 for further information.

LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..120

Index entries for Ulam numbers

EXAMPLE

a(11) = 55 = 1 + ... + 10 = 10*11/2, because it is the least number >10 with a unique sum of 10 distinct earlier terms.

a(12) = 100 = 1 + ... + 9 + 55 = 10^2, because it is the least number >55 with a unique sum of 10 distinct earlier terms.

MAPLE

# see A183534 for programs.

CROSSREFS

Column k=10 of A183534.

Cf. A002858, A007086, A183527-A183532, A135737.

Sequence in context: A062683 A137857 A161980 * A132576 A161948 A258785

Adjacent sequences:  A183530 A183531 A183532 * A183534 A183535 A183536

KEYWORD

nonn

AUTHOR

Jonathan Vos Post and Alois P. Heinz, Jan 05 2011

STATUS

approved

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Last modified March 3 09:18 EST 2021. Contains 341760 sequences. (Running on oeis4.)