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

 

Logo

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!)
A031001 Position of n-th 2 in A030998. 0
2, 12, 21, 23, 25, 26, 27, 29, 31, 33, 40, 54, 68, 82, 99, 120, 134, 137, 140, 141, 143, 146, 149, 152, 162, 183, 204, 225, 238, 241, 244, 246, 247, 250, 253, 256, 259, 262, 265, 267, 268, 271, 274, 277, 280, 281, 283, 284, 286 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..49.

CROSSREFS

Sequence in context: A096108 A098941 A231875 * A048955 A034049 A271361

Adjacent sequences:  A030998 A030999 A031000 * A031002 A031003 A031004

KEYWORD

nonn

AUTHOR

Clark Kimberling

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 30 16:23 EST 2021. Contains 349423 sequences. (Running on oeis4.)