A381658 -id:A381658 - cp's OEIS frontend

A381660 The value k such that n = a(j) = a(j+k) = a(j+2*k) in A381658.

1, 1, 1, 3, 15, 2, 1, 1, 3, 9, 43, 26, 28, 15, 4, 36, 18, 25, 6, 25, 31, 20, 70, 46, 26, 352, 114, 11, 19, 23, 49, 56, 70, 15, 56, 79, 46, 409, 29, 48, 24, 48, 52, 16, 77, 11, 123, 16, 78, 73, 48, 44, 49, 31, 11, 178, 330, 305, 180, 454, 147, 45, 158, 280, 108, 296, 53, 13, 22, 4, 184, 145, 99, 86, 114, 6, 42, 41, 248, 76, 570, 54, 204, 25, 125, 522, 110

Offset: 1

Scott R. Shannon, Mar 04 2025

nonn

The last known term that equals 1 is a(112). See A381658.

Scott R. Shannon, Table of n, a(n) for n = 1..250

Cf. A381658, A381659, A092482, A381597, A229037.

A381659 Index where n first appears in A381658.

Original entry on oeis.org

1, 4, 11, 21, 31, 69, 93, 96, 174, 222, 263, 433, 529, 633, 671, 732, 1006, 1298, 1388, 1519, 1688, 1813, 2018, 2220, 2507, 2788, 3601, 3949, 4155, 4498, 4612, 4792, 5018, 5476, 5864, 6165, 6391, 6611, 8402, 9173, 9527, 10388, 10727, 11379, 11834, 12045, 12684, 13116, 13552, 14038, 14974, 15340, 15988, 16301, 16994, 18426, 19514, 20372, 21366, 22953

Offset: 1

Scott R. Shannon, Mar 04 2025

nonn

Cf. A381658, A381660, A092482, A381597, A229037.

cp's OEIS Frontend

A381660 The value k such that n = a(j) = a(j+k) = a(j+2*k) in A381658.

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A381659 Index where n first appears in A381658.

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