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A108662 Numbers such that sum of digits squared is a prime. +0
2
11, 12, 14, 16, 21, 23, 25, 27, 32, 38, 41, 45, 49, 52, 54, 56, 58, 61, 65, 72, 78, 83, 85, 87, 94, 101, 102, 104, 106, 110, 111, 113, 119, 120, 126, 131, 133, 137, 140, 146, 159, 160, 162, 164, 166, 168, 173, 179, 186, 191, 195, 197, 199, 201, 203, 205, 207, 210 (list; graph; listen)
OFFSET

1,1

EXAMPLE

23 is OK because 2^2+3^2=13 is a prime.

CROSSREFS

Sequence in context: A061082 A055100 A088134 this_sequence A108722 A034907 A045987

Adjacent sequences: A108659 A108660 A108661 this_sequence A108663 A108664 A108665

KEYWORD

nonn,base

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Jun 16 2005

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Last modified December 20 13:54 EST 2009. Contains 171081 sequences.


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