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A095679 Numbers n such that n^2 + largest digit of n is prime. 0
1, 10, 21, 61, 65, 74, 76, 81, 87, 98, 110, 130, 176, 190, 230, 243, 270, 274, 285, 298, 322, 374, 403, 423, 470, 472, 474, 483, 490, 504, 534, 552, 585, 598, 605, 611, 670, 698, 716, 730, 734, 744, 752, 754, 783, 807, 825, 837, 855, 890, 902, 910, 922, 952 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..54.

EXAMPLE

a(5) = 65 because 65^2 + 6 = 4231, a prime.

MATHEMATICA

Select[Range[1000], PrimeQ[#^2 + Max[IntegerDigits[#]]] &] (* Harvey P. Dale, Jan 13 2011 *)

CROSSREFS

Cf. A054055.

Sequence in context: A231966 A156592 A045973 * A095192 A096564 A041196

Adjacent sequences:  A095676 A095677 A095678 * A095680 A095681 A095682

KEYWORD

base,easy,nonn

AUTHOR

Jason Earls, Jul 13 2004

STATUS

approved

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Last modified May 8 19:28 EDT 2021. Contains 343666 sequences. (Running on oeis4.)