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A155768 Indices of primes with digits in strictly decreasing order. 0
1, 2, 3, 4, 11, 13, 14, 16, 18, 20, 21, 23, 25, 82, 83, 98, 100, 115, 116, 117, 119, 132, 133, 135, 142, 147, 150, 160, 162, 164, 166, 717, 835, 843, 933, 956, 968, 970, 1055, 1062, 1066, 1076, 1088, 1090, 1092, 1093, 1166, 1167, 1179, 1190, 1191, 1199, 1202 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Indices of primes in A052014.

There are exactly 87 terms: 1,2,3,4,11,13,14,16,18,20,21,23,25,82,83,98,100,115,116,117,119,132,133,135,142,147,150,160,162,164,166,717,835,843,933,956,968,970,1055,1062,1066,1076,1088,1090,1092,1093,1166,1167,1179,1190,1191,1199,1202,1215,1218,7433,7518,7530,7531,8414,8486,8498,8509,8510,8511,9096,9286,9391,9441,9463,9468,9471,9479,61307,68743,69564,76755,77533,77608,77614,587773,587837,649440,656917,5634190,5694444,5694505

LINKS

Table of n, a(n) for n=1..53.

MATHEMATICA

Select[Range[1300], And@@Negative[Differences[IntegerDigits[Prime[#]]]]&] (* Harvey P. Dale, Nov 24 2011 *)

CROSSREFS

A052014.

Sequence in context: A181542 A160914 A326377 * A138985 A184806 A176541

Adjacent sequences:  A155765 A155766 A155767 * A155769 A155770 A155771

KEYWORD

base,fini,full,nonn

AUTHOR

Zak Seidov, Jan 27 2009

STATUS

approved

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Last modified April 17 06:29 EDT 2021. Contains 343059 sequences. (Running on oeis4.)