A257475 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A257475

Position of second and last occurrence of n in A256918.

5

2, 6, 9, 12, 8, 14, 30, 17, 20, 28, 123, 23, 201, 32, 25, 39, 300, 46, 825, 43, 34, 125, 946, 51, 27, 203, 47, 52, 3094, 56, 7060, 62, 127, 302, 54, 71, 13528, 827, 205, 61, 28659, 79, 40811, 132, 58, 948, 46658, 65, 81, 99, 304, 210, 57450, 69, 134, 77, 829

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

GCD(A257218(a(n)),A257218(a(n)-1)) = n;

a(n) > A257120(n); a(n) = A257120 + A257478(n).

LINKS

Hiroaki Yamanouchi, Table of n, a(n) for n = 1..72

EXAMPLE

PROG

a257475 n = f 1 a256918_list where

f i (u:us) = (if u == n then g else f) (i + 1) us

g j (v:vs) = if v == n then j else g (j + 1) vs

CROSSREFS

Cf. A256918, A257120, A257478, A257218.

Sequence in context: A026348 A187483 A032713 * A086939 A174682 A287126

Adjacent sequences: A257472 A257473 A257474 * A257476 A257477 A257478

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Apr 25 2015

EXTENSIONS

a(38)-a(57) from Hiroaki Yamanouchi, May 03 2015

STATUS

approved