A003252 The number m such that A003251(m) = A003231(n). (Formerly M2521)

3, 6, 9, 12, 15, 18, 21, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 61, 64, 67, 70, 73, 76, 79, 82, 84, 87, 90, 93, 96, 99, 102, 105, 108, 111, 114, 117, 120, 122, 125, 128, 131, 134, 137, 140, 143, 145, 148, 151, 154, 157, 159, 162, 165, 168, 171

Offset

1,1

Comments

This is the function named lambda in [Carlitz]. - Eric M. Schmidt, Aug 14 2014

References

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Links

Table of n, a(n) for n=1..59.

L. Carlitz, R. Scoville and T. Vaughan, Some arithmetic functions related to Fibonacci numbers, Fib. Quart., 11 (1973), 337-386.

Formula

a(n) = 3n - j(n), where j(n) is the maximum number such that j(n) <= A003249(n). [Carlitz, Theorem 7.15.] - Eric M. Schmidt, Aug 17 2014

Crossrefs

Cf. A003253.

Sequence in context: A214813 A119888 A305495 * A160943 A160930 A212662

Adjacent sequences: A003249 A003250 A003251 * A003253 A003254 A003255

Keyword

nonn

Author

N. J. A. Sloane

Extensions

Sequence corrected and extended by, and definition from Eric M. Schmidt, Aug 17 2014

Status

approved