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

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A122548 Let N = 35711171923293137..., the concatenation of the odd primes. a(n) is the n-digit number formed from the digits of N starting from the {n(n-1)/2 +1}th digit. Omit any leading zeros. 0
 3, 57, 111, 3171, 92329, 313741, 4347535, 96167717, 379838997, 1011031071, 9113127131, 137139149151, 1571631671731, 79181191193197, 199211223227229, 2332392412512572, 63269271277281283, 293307311313317331 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Paul Cooijmans, Odds. CROSSREFS Cf. A066549. Sequence in context: A344690 A203483 A051227 * A078728 A032696 A337790 Adjacent sequences:  A122545 A122546 A122547 * A122549 A122550 A122551 KEYWORD base,nonn AUTHOR Herman Jamke (hermanjamke(AT)fastmail.fm), Sep 19 2006 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 December 2 23:30 EST 2021. Contains 349445 sequences. (Running on oeis4.)