login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A086379 Numbers such that 1 + sum of digits as well as 1 + product of digits are both prime. 0
1, 2, 4, 6, 11, 22, 28, 66, 82, 112, 114, 121, 123, 129, 132, 136, 141, 147, 156, 163, 165, 174, 189, 192, 198, 211, 213, 219, 231, 235, 237, 253, 268, 273, 279, 286, 291, 297, 312, 316, 321, 325, 327, 334, 343, 345, 349, 352, 354, 361, 367, 369, 372, 376, 394 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

MATHEMATICA

f[n_] := Block[{d = IntegerDigits[n]}, PrimeQ[1 + Plus @@ d] && PrimeQ[1 + Times @@ d]]; Select[ Range[410], f[ # ] &]

CROSSREFS

Sequence in context: A049870 A093970 A107428 * A096460 A084353 A084979

Adjacent sequences:  A086376 A086377 A086378 * A086380 A086381 A086382

KEYWORD

nonn,base

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 07 2003

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 14 06:20 EST 2012. Contains 205570 sequences.