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A103390 Natural numbers but with nonprimes squared. 3
0, 1, 2, 3, 16, 5, 36, 7, 64, 81, 100, 11, 144, 13, 196, 225, 256, 17, 324, 19, 400, 441, 484, 23, 576, 625, 676, 729, 784, 29, 900, 31, 1024, 1089, 1156, 1225, 1296, 37, 1444, 1521, 1600, 41, 1764, 43, 1936, 2025, 2116, 47, 2304, 2401, 2500, 2601, 2704, 53 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Daniel Starodubtsev, Table of n, a(n) for n = 1..10000

Peter Alfeld, The 1,000 smallest prime numbers .

EXAMPLE

4 is not a prime, so it is squared.

MATHEMATICA

Table[ If[ PrimeQ[n], n, n^2], {n, 0, 54}] (* Robert G. Wilson v, Mar 24 2005 *)

CROSSREFS

Cf. A103164.

Sequence in context: A190116 A088447 A326578 * A167761 A176029 A218323

Adjacent sequences:  A103387 A103388 A103389 * A103391 A103392 A103393

KEYWORD

easy,nonn

AUTHOR

Parthasarathy Nambi, Mar 20 2005

EXTENSIONS

More terms from Robert G. Wilson v, Mar 24 2005

STATUS

approved

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Last modified May 18 19:58 EDT 2021. Contains 344002 sequences. (Running on oeis4.)