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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A190426 First differences of A132271 not in A132271. 1

%I

%S 12,23,45,56,67,89,100,244,266,288,310,332,376,398,420,696,762,795,

%T 828,861,894,927,1222,1368,1412,1456,1500,1544,1588,1632,1676,1720,

%U 2260,2315,2370,2425,2480,2535,2590,2645,2700,3372,3438,3504,3570,3636,3702,3768,3834,3900

%N First differences of A132271 not in A132271.

%H G. C. Greubel, <a href="/A190426/b190426.txt">Table of n, a(n) for n = 1..5000</a>

%t f[n_] := Block[{k = 0, p = 1}, While[a = Floor[n/10^k]; a > 0, p *= 1 + a; k++]; p]; t = Array[f, 591, 0]; Take[ Complement[ Union[ Rest@ t - Most@ t], t], 50]

%Y Cf. A132271.

%K easy,nonn

%O 1,1

%A _Robert G. Wilson v_, May 10 2011

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 25 02:25 EDT 2021. Contains 347651 sequences. (Running on oeis4.)