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A035511 3rd column of Inverse Stolarsky array. 0
12, 20, 25, 38, 46, 59, 72, 80, 93, 109, 114, 127, 135, 148, 164, 169, 182, 198, 203, 216, 224, 237, 253, 258, 271, 279, 292, 308, 313, 326, 342, 347, 360, 368, 381, 397, 402, 415, 423, 436, 449, 457, 470, 486, 491, 504, 512, 525, 541, 546, 559, 575, 580, 593 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

REFERENCES

C. Kimberling, "Interspersions and dispersions," Proceedings of the American Mathematical Society 117 (1993) 313-321.

LINKS

Table of n, a(n) for n=0..53.

C. Kimberling, Interspersions

N. J. A. Sloane, Classic Sequences

FORMULA

a(n)=(2round(n*tau)+1)+3(floor((round(n*tau)+1/2)tau)+1) for n>0 and a(0)=12, tau=(1+sqrt(5))/2 - C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 01 2005

MAPLE

tau:=(1+sqrt(5))/2: 12, seq((2*round(n*tau)+1)+3*floor((2*round(n*tau)+1)*tau/2)+3, n=1..69); (Ronaldo)

CROSSREFS

Cf. A035507.

Sequence in context: A109396 A286004 A055598 * A095035 A108027 A090767

Adjacent sequences:  A035508 A035509 A035510 * A035512 A035513 A035514

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 01 2005

STATUS

approved

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Last modified February 18 17:08 EST 2018. Contains 299325 sequences. (Running on oeis4.)