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A061665 Numbers n whose digits in their prime factorization are the same as those of the prime factorization of n+1. 0
8763, 61077, 62157, 160209, 218553, 259814, 292226, 317289, 388118, 392702, 423165, 424878, 425757, 676131, 676317, 719942, 749948, 775018, 797905, 822990, 848262, 854398, 859537, 875172, 891158, 949332, 953970, 983018, 1084773 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
EXAMPLE
8763 = 3*23*127 and 8764 = 2*2*7*313.
MATHEMATICA
fds[n_]:=Sort[Flatten[IntegerDigits/@Table[First[#], {Last[#]}]&/@n]]; Select[Range[1100000], fds[FactorInteger[#]]==fds[FactorInteger[#+1]]&] (* Harvey P. Dale, Jun 21 2011 *)
CROSSREFS
Sequence in context: A269288 A234148 A205254 * A237484 A255758 A255751
KEYWORD
base,nonn
AUTHOR
Erich Friedman, Jun 16 2001
EXTENSIONS
More terms from David Wasserman, Jun 20 2002
STATUS
approved

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Last modified February 22 19:53 EST 2024. Contains 370260 sequences. (Running on oeis4.)