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A066751
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Triangular numbers whose reverse is prime.
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2
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3, 91, 136, 325, 703, 1081, 1378, 1711, 3655, 11026, 11476, 13861, 18145, 18721, 36046, 70876, 75466, 76636, 79003, 92665, 99235, 107416, 108811, 110215, 118828, 123256, 130816, 137026, 140185, 158203, 166753, 173755, 186355, 303031, 310078
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,1000
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PROG
| (PARI) Rev(x)= { local(d, r=0); while (x>0, d=x%10; x\=10; r=r*10 + d); return(r) } { n=0; for (m=1, 10^10, t=m*(m + 1)/2; if (t%10 && isprime(Rev(t)), write("b066751.txt", n++, " ", t); if (n==1000, return)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Mar 21 2010]
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CROSSREFS
| Sequence in context: A053996 A203477 A115704 * A115886 A041439 A156754
Adjacent sequences: A066748 A066749 A066750 * A066752 A066753 A066754
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KEYWORD
| easy,nonn,base
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AUTHOR
| Jason Earls (zevi_35711(AT)yahoo.com), Jan 16 2002
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