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A074865 a(n) = a(n-1) + R[a(n-2)] + R[a(n-3)] + R[a(n-4)] where a(0) = a(1) = a(2) = a(3) = 1 and R(n) (A004086) is the reverse of n. 0
1, 1, 1, 1, 4, 7, 13, 25, 67, 157, 316, 1195, 2635, 9910, 21796, 33268, 108541, 264685, 566431, 1384927, 2251855, 10267813, 23278831, 68031385, 119376340, 223452859, 339327088, 1399568407, 3282220573, 12169858759, 23849465446, 130434244321 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..32.

CROSSREFS

Cf. A000288.

Sequence in context: A181565 A004119 A074864 * A072683 A122552 A197546

Adjacent sequences:  A074862 A074863 A074864 * A074866 A074867 A074868

KEYWORD

easy,base,nonn

AUTHOR

Felice Russo, Sep 11 2002

EXTENSIONS

Corrected and extended by Michel ten Voorde (seqfan(AT)tenvoorde.org) Jun 13 2003

More terms from Joshua Zucker, May 08 2006

STATUS

approved

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Last modified September 3 03:50 EDT 2014. Contains 246369 sequences.