A155763 -id:A155763 - cp's OEIS frontend

A155774 Prime indices of primes with digits in strictly increasing order.

7, 17, 19, 31, 37, 41, 73, 487, 619, 1487, 1489, 1597, 11699, 29629, 95443, 111119

Offset: 1

Juri-Stepan Gerasimov, Jan 27 2009

			If prime=n=7 and prime(7)=17, then 1<7 and 7=a(1). If prime=n=17 and prime(17)=59, then 5<9 and 17=a(2). If prime=n=19 and prime(19)=67, then 6<7 and 19=a(3), etc.

Cf. A000040, A155079.

A000040 INTERSECT A155763. [From R. J. Mathar, Mar 14 2009]

Corrected with better definition from Omar E. Pol, Jan 31 2009
All remaining terms added by R. J. Mathar, Mar 14 2009
New name from Charles R Greathouse IV, Sep 11 2011

A155776 Even indices of multidigit primes with digits in strictly increasing order.

Original entry on oeis.org

6, 8, 10, 12, 22, 24, 34, 52, 70, 72, 88, 92, 104, 204, 232, 278, 348, 350, 364, 376, 486, 644, 1478, 1504, 1830, 2622, 2646, 3694, 3704, 11602, 11706, 12560, 20884, 21698, 29630, 96140, 809912

Offset: 1

Juri-Stepan Gerasimov, Jan 27 2009

The subset of even numbers of A155763 larger than 5. [From R. J. Mathar, Feb 06 2009]

			If n=6=even and prime(6)=13, then 1<3 and 6=a(1). If n=8=even and prime(8)=19, then 1<9 and 8=a(2). If n=10=even and prime(10)=29, then 2<9 and 10=a(3), etc.

Cf. A155763, A000040, A005843, A155079.

Select[Range[6,810000,2],Min[Differences[IntegerDigits[Prime[#]]]]>0&] (* Harvey P. Dale, Mar 02 2014 *)

Corrected with better definition by Omar E. Pol, Jan 31 2009
All remaining terms from R. J. Mathar, Feb 06 2009
New name from Charles R Greathouse IV, Sep 11 2011

cp's OEIS Frontend

A155774 Prime indices of primes with digits in strictly increasing order.

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