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A036110 A summarize Fibonacci sequence: summarize the previous two terms!. 0
2, 2, 22, 32, 1332, 332211, 433231, 14533231, 1524632231, 162524534241, 263544336241, 363564435231, 463554733221, 17364544733221, 37263554634231, 37363554734231, 37364544933221, 1937263554933221, 3927263544835231, 391827264534836231, 293827363544836231 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

From the 26th term the sequence gets into a cycle of 46.

LINKS

Table of n, a(n) for n=0..20.

PROG

(Python)

def aupton(nn):

  alst = [2, 2]

  for n in range(2, nn+1):

    prev2, anstr = sorted(str(alst[-2]) + str(alst[-1])), ""

    for d in sorted(set(prev2), reverse=True):

      anstr += str(prev2.count(d)) + d

    alst.append(int(anstr))

  return alst

print(aupton(20)) # Michael S. Branicky, Feb 02 2021

CROSSREFS

Cf. A036059, A007890.

Sequence in context: A014353 A153438 A190632 * A143807 A118454 A118326

Adjacent sequences:  A036107 A036108 A036109 * A036111 A036112 A036113

KEYWORD

base,easy,nonn

AUTHOR

Floor van Lamoen

STATUS

approved

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Last modified March 3 03:03 EST 2021. Contains 341756 sequences. (Running on oeis4.)