The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS"). Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A044007 Numbers n such that 1 and 4 occur juxtaposed in the base 10 representation of n but not of n+1. 0
 14, 41, 114, 149, 214, 241, 314, 341, 419, 441, 514, 541, 614, 641, 714, 741, 814, 841, 914, 941, 1014, 1041, 1114, 1149, 1214, 1241, 1314, 1341, 1499, 1514, 1541, 1614, 1641, 1714, 1741, 1814, 1841, 1914, 1941, 2014, 2041 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS MATHEMATICA SequencePosition[Table[If[SequenceCount[IntegerDigits[n], {1, 4}]> 0 || SequenceCount[IntegerDigits[n], {4, 1}]>0, 1, 0], {n, 2100}], {1, 0}] [[All, 1]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Jul 01 2019 *) CROSSREFS Sequence in context: A056034 A039404 A043227 * A199710 A214521 A064512 Adjacent sequences:  A044004 A044005 A044006 * A044008 A044009 A044010 KEYWORD nonn,base AUTHOR 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
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified November 29 14:52 EST 2020. Contains 338769 sequences. (Running on oeis4.)