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A008320 Smallest number that is not the sum of squares of two distinct earlier terms. 2
1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 15, 16, 18, 19, 21, 22, 23, 24, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 38, 39, 41, 42, 43, 44, 46, 47, 48, 49, 51, 54, 55, 56, 57, 59, 60, 61, 62, 63, 64, 66, 67, 69, 70, 71, 72, 74, 75, 76, 77, 78, 79, 81, 83, 84, 86, 87, 88, 89, 91, 92, 93, 94 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

Mihaly Bencze [Beneze], Smarandache Recurrence Type Sequences, Unknown source, pp. 99-102. Originally appeared in Bull. Pure Appl. Sciences.

F. Smarandache, Sequences of Numbers Involved in Unsolved Problems.

Eric Weisstein's World of Mathematics, Smarandache Sequences.

MATHEMATICA

FixedPoint[Complement[Range@100, Flatten@Table[#[[i]]^2 + #[[j]]^2, {i, Length[#]}, {j, i - 1}]] &, {}] (* Ivan Neretin, Jun 05 2016 *)

CROSSREFS

A026468 is the version without "distinct".

Sequence in context: A119930 A173552 A188010 * A004439 A050126 A013939

Adjacent sequences:  A008317 A008318 A008319 * A008321 A008322 A008323

KEYWORD

nonn

AUTHOR

R. Muller

EXTENSIONS

More terms from David W. Wilson

STATUS

approved

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Last modified March 21 22:19 EDT 2019. Contains 321382 sequences. (Running on oeis4.)