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Search: id:A056893
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A056893 Smallest prime with square excess of n. +0
3
2, 3, 7, 13, 41, 31, 23, 89, 73, 59, 47, 61, 113, 239, 79, 97, 593, 139, 163, 461, 277, 191, 167, 193, 281, 251, 223, 317, 353, 991, 431, 761, 433, 563, 359, 397, 521, 479, 439, 569, 617, 571, 619, 773, 829, 887, 947, 673, 1493, 1571, 727, 1013, 953, 1279 (list; graph; listen)
OFFSET

1,1

FORMULA

a(n) =n+A056894(n)

EXAMPLE

a(4)=13 since 13=3^2+4, while 2, 3, 5, 7 and 11 have square ecesses of 1, 2, 1 and 3 respectively.

CROSSREFS

Cf. A000040, A000196, A002496, A048760, A053186, A056892-A056898.

Sequence in context: A123408 A033995 A013917 this_sequence A051130 A078749 A046062

Adjacent sequences: A056890 A056891 A056892 this_sequence A056894 A056895 A056896

KEYWORD

nonn

AUTHOR

Henry Bottomley (se16(AT)btinternet.com), Jul 05 2000

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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