A076701 -id:A076701 - cp's OEIS frontend

A086451 Numbers not in A086335.

14, 27, 30, 34, 45, 49, 51, 91, 92, 95, 97, 101, 108, 109, 123, 126, 127, 131, 140, 145, 160, 170, 185, 186, 195, 199, 201, 211, 212, 215, 224, 226, 244, 250, 263, 265, 279, 293, 303, 314, 317, 325, 347, 351, 360, 370, 371, 375, 379, 381, 395, 399, 403, 404

Offset: 1

Roger L. Bagula, Sep 14 2003

nonn

Cf. A004001, A005185, A086335, A076701.

Edited by N. J. A. Sloane, May 25 2006

A327284 Indices of terms of the Hofstadter Q-sequence (A005185) not used in generating a later term.

Original entry on oeis.org

1, 216, 361, 429, 451, 599, 766, 774, 775, 778, 792, 793, 820, 849, 863, 882, 968, 1042, 1111, 1215, 1216, 1228, 1407, 1524, 1528, 1542, 1543, 1550, 1551, 1573, 1653, 1672, 1673, 1674, 1675, 1863, 1905, 1920, 1938, 1954, 2078, 2185, 2186, 2187, 2195, 2196, 2277

Offset: 1

Benjamin Chaffin, Sep 15 2019

nonn

Each term of the Q-sequence is the sum of two previous terms. This sequence gives the Q-sequence terms which appear never to be used as one of those two. In other words, a(n) != x - A005185(x-1), and a(n) != x - A005185(x-2).

Benjamin Chaffin, Table of n, a(n) for n = 1..10000

Cf. A005185, A076701.

cp's OEIS Frontend

A086451 Numbers not in A086335.

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A327284 Indices of terms of the Hofstadter Q-sequence (A005185) not used in generating a later term.

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