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Search: id:A079130
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A079130 Primes such that iterated sum-of-digits (A038194) is a square. +0
3
13, 19, 31, 37, 67, 73, 103, 109, 127, 139, 157, 163, 181, 193, 199, 211, 229, 271, 283, 307, 337, 373, 379, 397, 409, 433, 463, 487, 499, 523, 541, 571, 577, 607, 613, 631, 643, 661, 733, 739, 751, 757, 769, 787, 811, 823, 829, 859, 877, 883, 919, 937, 967 (list; graph; listen)
OFFSET

1,1

PROGRAM

(PARI) forprime(p=2, 1000, if(issquare(p%9), print1(p, ", ")))

CROSSREFS

Cf. A078403, A079131, A079132.

Sequence in context: A115093 A158195 A040092 this_sequence A167473 A085413 A164333

Adjacent sequences: A079127 A079128 A079129 this_sequence A079131 A079132 A079133

KEYWORD

nonn,easy,base

AUTHOR

Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Dec 28 2002

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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