A361464 Numbers k such that A135504(k+1) / A135504(k) is a multiple of 4.

6, 10, 18, 21, 22, 30, 32, 42, 45, 46, 58, 66, 68, 70, 78, 82, 85, 91, 93, 102, 106, 114, 117, 126, 128, 130, 133, 138, 140, 141, 150, 162, 165, 166, 171, 176, 178, 187, 190, 198, 200, 205, 210, 212, 213, 214, 222, 226, 234, 235, 238, 248, 250, 253, 261, 262, 267, 270, 282, 294, 301, 306, 308, 310, 320

Offset: 1

Author

Antti Karttunen, Mar 14 2023

Keywords

• nonn

Comments

Numbers k for which A135506(n) == 3 (mod 4).

Crossrefs

Positions of 3's in A361462.

Cf. A135504, A135506, A361461, A361463 (characteristic function).

Programs

PARI

isA361464(n) = A361463(n);