A394331 Third column of A394328.

0, 0, 0, 0, 0, 2, 2, 1, 1, 0, 5, 4, 3, 2, 1, 7, 6, 4, 3, 1, 10, 8, 6, 4, 2, 24, 22, 18, 16, 12, 25, 21, 18, 14, 11, 24, 21, 16, 13, 8, 25, 20, 16, 11, 7, 24, 20, 14, 10, 4, 50, 44, 38, 32, 26, 47, 41, 34, 28, 21, 45, 38, 31, 24, 17, 42, 35, 27, 20, 12, 40, 32, 24

Offset

0,6

Links

Table of n, a(n) for n=0..72.

Formula

a(5^k) = floor((k*(5^k-1)+1)/2) = floor(A394526(k)/2).

Property (non-increasing quintuplets): a(m*5^k) >= a(m*5^k + 5^(k-1)) >= a(m*5^k + 2*5^(k-1)) >= a(m*5^k + 3*5^(k-1)) >= a(m*5^k + 4*5^(k-1)).

Crossrefs

Cf. A394328, A394526.

Sequence in context: A004564 A300705 A144157 * A321400 A004562 A261817

Adjacent sequences: A394328 A394329 A394330 * A394332 A394333 A394334

Keyword

nonn

Author

A.H.M. Smeets, Mar 23 2026

Status

approved