A140510 Position of the n-th Catalan number in the EKG sequence.

1, 1, 2, 10, 13, 35, 123, 395, 1346, 4670, 16182, 57004, 202306, 724530, 2614187, 9493788, 34679580

Offset

0,3

Links

Table of n, a(n) for n=0..16.

Formula

A064413(a(n)) = A000108(n). - Amiram Eldar, Sep 25 2025

Example

4862 is a Catalan number and is located at position 4670 in the EKG sequence.

Crossrefs

Cf. A000108, A064413.

Sequence in context: A037386 A250187 A062317 * A277087 A098735 A324856

Adjacent sequences: A140507 A140508 A140509 * A140511 A140512 A140513

Keyword

nonn,more

Author

Parthasarathy Nambi, Jun 30 2008

Extensions

Name edited, offset changed to 0 and a(10)-a(11) added by Amiram Eldar, Sep 25 2025

a(12)-a(16) from Michael De Vlieger, Sep 25 2025

Status

approved