This site is supported by donations to The OEIS Foundation.

"Email this user" was broken Aug 14 to 9am Aug 16. If you sent someone a message in this period, please send it again.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A189125 Primes p such that A005245(p) < A005245(p-1)+1. 4
 353942783, 1163385647, 1932319583, 2336924879, 4166809919, 4937621453, 5123340683, 5184740299, 5390865059, 5455982879, 5467766947, 6432033887, 6459553799, 6545574839, 6714582263, 6988649399, 7378517519, 7515851039, 7657182539, 7756383347 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Counterexamples to the conjecture from section F26 in UPINT. a(1) was found by Martin Fuller; a(2) was found by Janis Iraids. The prime terms of each of the sequences A189123 and A189124. REFERENCES R. K. Guy, Unsolved Problems in Number Theory, Section F26. LINKS Janis Iraids, Table of n, a(n) for n = 1..1000 Martin N. Fuller, C program for A005245 CROSSREFS Cf. A005245, A189123, A189124. Sequence in context: A167517 A227642 A189124 * A258610 A227933 A159300 Adjacent sequences:  A189122 A189123 A189124 * A189126 A189127 A189128 KEYWORD nonn,hard AUTHOR Max Alekseyev, Apr 17 2011 EXTENSIONS More terms from Janis Iraids, Apr 20 2011. STATUS approved

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